Last updated: 2026-11-10

Sunglasses for Big Heads: Buy by Three Numbers, Not by the Label

The starting point

If your hat size is 7¼ or larger, the width you need is 155 mm (woolet.co, read 2026-11-10) and the temple you need is 145 mm (size-charts.com, read 2026-11-10). Of the 12 models that publish a total width, the widest is 147 mm (goodr.com, read 2026-11-10), 8 mm short of the 155 mm you need, computed from 155 mm and 147 mm (woolet.co, read 2026-11-10; goodr.com, read 2026-11-10); the other 9 models publish no total width at all. The closest published tier is the Goodr BFG at 147 mm total width (goodr.com, read 2026-11-10) and 135 mm temple length (goodr.com, read 2026-11-10), which is 8 mm below the width needed, computed from 155 mm and 147 mm (woolet.co, read 2026-11-10; goodr.com, read 2026-11-10). The BFG shares the widest published total width in the tables with the Kaenon Solvang, also at 147 mm (kaenon.com, read 2026-11-10), so neither sets a ceiling for the fit, only the closest available tier. Three numbers are used instead, and each number has one job: total width decides whether the front clears the temples, temple length decides whether the arms reach behind the ears, and bridge width decides where the frame sits on the nose (size-charts.com, read 2026-11-10).

How to measure total width, temple length, and bridge width

Total width is the width of the whole front, measured from one end of the frame to the other end, taking into account any hinges or design features that protrude to the sides (size-charts.com, read 2026-11-10). Lay the frame face down on a flat surface, lay a millimetre ruler horizontally across the front, and read the distance from the outer edge of the left hinge to the outer edge of the right hinge (size-charts.com, read 2026-11-10). The same guide measures frame width from one end of the screw to the other end of the screw (size-charts.com, read 2026-11-10). A second check uses the face itself: hold a ruler in line with the temples in front of a mirror and measure the distance from one temple to the other (size-charts.com, read 2026-11-10). A temple-to-temple distance of 135–139 mm (size-charts.com, read 2026-11-10) maps to a large frame, and a temple-to-temple distance of 140–144 mm (size-charts.com, read 2026-11-10) maps to an extra large frame.

Temple length is the length of the frame arms, measured from the screw position to the end of the temple, including the bend (size-charts.com, read 2026-11-10). Measure one temple from screw to tip to determine its length (size-charts.com, read 2026-11-10). Temple lengths range from 120 mm (size-charts.com, read 2026-11-10) to 150 mm (size-charts.com, read 2026-11-10), with the most frequent lengths being 135 mm (size-charts.com, read 2026-11-10), 140 mm (size-charts.com, read 2026-11-10), 145 mm (size-charts.com, read 2026-11-10), and 150 mm (size-charts.com, read 2026-11-10). The end of the temple should extend halfway down the back of the ear when bent (size-charts.com, read 2026-11-10). If the temple is too short, it will not bend correctly behind the ears to protect the frames from slipping down and moving around (size-charts.com, read 2026-11-10). The long band runs from 145 mm (size-charts.com, read 2026-11-10) to 150 mm (size-charts.com, read 2026-11-10), and a separate wide-face guide states that most temples fall between 135 mm (swteyewear.com, read 2026-11-10) and 150 mm (swteyewear.com, read 2026-11-10), and that 145 mm (swteyewear.com, read 2026-11-10) is on the longer side of ordinary and suits most deeper heads.

Bridge width is the distance between the lenses (size-charts.com, read 2026-11-10). Read it from the three-number code printed on the inside of a temple, written as lens width, bridge width, and temple length: the bridge width is the middle number of the three (size-charts.com, read 2026-11-10). Most bridge sizes run from 14 mm (size-charts.com, read 2026-11-10) to 24 mm (size-charts.com, read 2026-11-10). A bridge of 15 mm (size-charts.com, read 2026-11-10) to 18 mm (size-charts.com, read 2026-11-10) suits a thin bridge or close-set eyes, and a bridge of 18 mm (size-charts.com, read 2026-11-10) to 22 mm (size-charts.com, read 2026-11-10) suits a more prominent bridge or wide-set eyes.

Twenty-one models, three numbers each

The tables below list 21 models (goodr.com; costadelmar.com; nativeyewear.com; kaenon.com; smithoptics.com; wileyx.com; ray-ban.com; mauijim.com; persol.com; oakley.com, read 2026-11-10), split into two segments. Only 12 models have all three numbers published on the brand site (goodr.com; costadelmar.com; nativeyewear.com; kaenon.com, read 2026-11-10). The other 9 models have at least one not verified cell, and the missing cell is left in words rather than filled from a roundup or a retailer.

Table 1 — These three numbers are all published on the brand site.

Table 2 — The official site does not publish at least one number; not published does not mean narrower.

A not verified cell means the brand site does not publish that number, not that the frame is narrower.

Four notes keep the tables honest. First, the Costa numbers come from a Size and Fit Guide on the same page, and the Native and Kaenon numbers come from the same kind of guide on their own pages. Second, the brands do not measure frame width in the same way, so a cross-brand ranking by total width alone mixes different definitions, and the tables keep each brand number with its own brand source instead of merging them into one scale (costadelmar.com; nativeyewear.com; goodr.com; kaenon.com, read 2026-11-10). Third, the Persol bridge numbers come from the published size code: the 649 lists size 54-20 (persol.com, read 2026-11-10) with temple length 140 mm (persol.com, read 2026-11-10), and the 714 lists size 54-21 (persol.com, read 2026-11-10) with temple length 140 mm (persol.com, read 2026-11-10), so the bridge is read as the second figure of that code, 20 mm (persol.com, read 2026-11-10) and 21 mm (persol.com, read 2026-11-10). The Ray-Ban bridge numbers are read the same way: the RB2132 lists size 58-18 (ray-ban.com, read 2026-11-10) with temple length 145 mm (ray-ban.com, read 2026-11-10), and the RB3025 lists lens width 62 mm (ray-ban.com, read 2026-11-10), bridge width 14 mm (ray-ban.com, read 2026-11-10), and temple length 140 mm (ray-ban.com, read 2026-11-10). Fourth, the Maui Jim numbers come from the brand product bulletins: the Lighthouse bulletin lists bridge size 12 mm (mauijim.com, read 2026-11-10), hinge-to-hinge 132 mm (mauijim.com, read 2026-11-10), and temple length 129 mm (mauijim.com, read 2026-11-10); the Peahi bulletin lists bridge size 19 mm (mauijim.com, read 2026-11-10) and temple length 120 mm (mauijim.com, read 2026-11-10). Hinge-to-hinge 132 mm (mauijim.com, read 2026-11-10) is not presented as total width. The Oakley Holbrook XXL row is all not verified because the oakley.com product page publishes only an unlabeled size figure, XXL 145 mm (oakley.com, read 2026-11-10), with no labelled frame width, arm length, or bridge width on the page read, and that figure is not presented as total width.

Three ways a fit fails

The first failure is a front that is too narrow for the temples (woolet.co, read 2026-11-10). The test is a single comparison: if the frame front is below the median temple width for the hat size, the arms press at the sides (woolet.co, read 2026-11-10). At hat size 7¼, the median temple width is 155 mm (woolet.co, read 2026-11-10), and the frame front needed is 155–158 mm (woolet.co, read 2026-11-10). A frame at 147 mm (goodr.com, read 2026-11-10) is 8 mm below that median, computed from 155 mm and 147 mm (woolet.co, read 2026-11-10; goodr.com, read 2026-11-10), so it can still press even though it is one of the two widest fully verified models in the tables. Kensington, writing on The Chicago Garage in a thread dated 2019-12-27 (thechicagogarage.com, read 2026-11-10), put the same failure in one sentence: "Still slightly too narrow, even at 148mm, and the arms were, again, way too short." A second wearer in the same thread, LikeABauce302, writing on The Chicago Garage in a thread dated 2019-12-27 (thechicagogarage.com, read 2026-11-10), named the frame that finally fit: "The best fitting sunglasses I've owned are Prada."

The second failure is a temple that is too short to reach behind the ear (size-charts.com, read 2026-11-10). The test is the 145 mm (size-charts.com, read 2026-11-10) line: temple lengths of 145 mm (size-charts.com, read 2026-11-10) to 150 mm (size-charts.com, read 2026-11-10) form the long band, and a temple below that band leaves the bend in front of the ear. The shortest temple in the table is the Wiley X WX Saint at 114 mm (wileyx.com, read 2026-11-10), which is 31 mm below the 145 mm (size-charts.com, read 2026-11-10) line, computed from 145 mm and 114 mm (size-charts.com, read 2026-11-10; wileyx.com, read 2026-11-10). The Costa Fantail PRO at 120 mm (costadelmar.com, read 2026-11-10) and the Maui Jim Peahi at 120 mm (mauijim.com, read 2026-11-10) are 25 mm below the same line, computed from 145 mm and 120 mm (size-charts.com, read 2026-11-10; costadelmar.com, read 2026-11-10; mauijim.com, read 2026-11-10). Kensington, writing on The Chicago Garage in a thread dated 2019-12-27 (thechicagogarage.com, read 2026-11-10), described the failure before any number was attached to it: "So I've struggled pretty much my whole life with sunglasses that don't fit my head. They are too narrow and/or the arms are WAY too short." The same writer, in the same thread, separated width from length and ranked them: "I'm finding that the width is one issue, my 55mm Ray Bans are a bit too narrow, but the biggest issue, by far, is the arm length."

The third failure is a frame that slides down the nose (size-charts.com, read 2026-11-10). The test is the anchor at the back of the ear: if the temple ends before the bend, the front has nothing holding it up, and the frame drops (size-charts.com, read 2026-11-10). A temple of 114 mm (wileyx.com, read 2026-11-10) or 120 mm (costadelmar.com, read 2026-11-10) leaves less length behind the ear than a temple of 145 mm (smithoptics.com, read 2026-11-10), a difference of 31 mm and 25 mm, computed from 145 mm and 114 mm and from 145 mm and 120 mm (size-charts.com, read 2026-11-10; wileyx.com, read 2026-11-10; costadelmar.com, read 2026-11-10). No verbatim quote about a nose pad sitting too high was found in the two forum threads read for this page, and that gap is stated here instead of filled with a paraphrase. The quote that covers sliding comes from totw, writing on BD Outdoors in a thread whose opening post was last edited 2018-05-07 (bdoutdoors.com, read 2026-11-10), about a Maui Jim Big Wave frame: "Polycarbonate lenses. Very light, so less likely to slide down your nose on sweaty-hot days." A second fit report comes from derby, writing on BD Outdoors in a thread whose opening post was last edited 2018-05-07 (bdoutdoors.com, read 2026-11-10): "I have 3 pairs of Kenon Trade glasses. Only ones I've been able to find that fit big head and block light from most angles." The same post states that Kenon Trade stopped making them, so no Kenon Trade number is added to the table and no Kenon Trade model is presented as a current pick.

Hat size to frame width

The millimetre conversion in this section comes from one source, woolet.co, a competing page for this keyword (woolet.co, read 2026-11-10). Hat size predicts temple width, and temple width predicts the frame front needed, through a regression published from ANSUR II, a United States Army survey from 2012 (woolet.co, read 2026-11-10) of 4,082 men (woolet.co, read 2026-11-10), with a correlation of r = 0.55 (woolet.co, read 2026-11-10). The regression is temple width in millimetres equals 1.91 (woolet.co, read 2026-11-10) times head circumference in centimetres plus 44.7 (woolet.co, read 2026-11-10). The table below is that regression in rows, as published on the hat-size guide page, and it does not use the Faded Days mapping of hat 7¾ to 155 mm (fadeddayssunglasses.com, read 2026-11-09) and hat 8 and over to 165 mm (fadeddayssunglasses.com, read 2026-11-09) as its basis. Hat size 7¼ is 58 cm (woolet.co, read 2026-11-10), and at 58 cm (woolet.co, read 2026-11-10) the median temple width is already 155 mm (woolet.co, read 2026-11-10). Stetson, a hat maker on a different domain, independently lists hat size 7¼ as 58 cm (stetson.com, read 2026-11-10), which confirms the hat-to-centimetre leg only and gives no frame width. The line to remember, as published, is 7¼, not 7½ (woolet.co, read 2026-11-10).

The correlation of r = 0.55 (woolet.co, read 2026-11-10) is strong, not absolute, and a single face can sit 4–5 mm (woolet.co, read 2026-11-10) either side of the median. At 58 cm (woolet.co, read 2026-11-10), 93% (woolet.co, read 2026-11-10) of men exceed standard-wide cranial breadth at the temples, and at 60 cm (woolet.co, read 2026-11-10), 99% (woolet.co, read 2026-11-10) do. The ANSUR II sample is military, younger and fitter than the general population, so the medians are close estimates rather than exact population values (woolet.co, read 2026-11-10). The ANSUR II data as republished by the NC State Ergonomics Center put median head breadth at 6.06 in (ergocenter.ncsu.edu, read 2026-11-10), which is 153.9 mm, computed from 6.06 in (ergocenter.ncsu.edu, read 2026-11-10) using the standard 25.4 mm per inch, but head breadth is not temple width, and that source gives no hat-size or frame-width mapping. No hat-size to temple-length table was found on any page read for this article, so temple length is used only as a separate check at 145 mm (size-charts.com, read 2026-11-10) to 150 mm (size-charts.com, read 2026-11-10), not as a second conversion row. A direct rejection of the hat-size method is also on record: FatHeadz states on its FAQ page that a hat size does not help in determining the width of a face or head (fatheadz.com, read 2026-11-10). The hat table is therefore presented as a median prediction with a stated scatter of 4–5 mm (woolet.co, read 2026-11-10), not as a guarantee for a single face, and the three-number table above remains the check that decides a single model. Note on the source: the hat guide is a different Woolet page from the top-three Woolet article, and its numbers come from the ANSUR II regression, not from that article, but the publisher is the same brand, and that fact is stated here rather than hidden (woolet.co, read 2026-11-10).

The printable size chart for this page is a single sheet with four parts and no download link in the body of the article. The first part is the two tables from the section above, with 21 models, total width, temple length, and bridge width in three columns and not verified kept in every missing cell. The second part is the hat-size table from this section, with hat size, head circumference, median temple width, and frame front width needed in four columns, from 53 cm (woolet.co, read 2026-11-10) to 62 cm (woolet.co, read 2026-11-10) and up. The third part is a millimetre ruler printed along the bottom edge, from 0 mm (woolet.co, read 2026-11-10) to 170 mm (woolet.co, read 2026-11-10), with a mark at 145 mm (size-charts.com, read 2026-11-10) for the start of the long temple band and a mark at 155 mm (woolet.co, read 2026-11-10) for the median temple width at hat size 7¼. The fourth part is a temple-to-temple measuring line with two end marks, one for 135 mm (size-charts.com, read 2026-11-10) and one for 144 mm (size-charts.com, read 2026-11-10), the two ends of the large to extra large temple-to-temple range.

Frequently asked questions

What total width should a big head start at? The width needed is 155 mm (woolet.co, read 2026-11-10). No model in the tables publishes a total width that reaches 155 mm (goodr.com; costadelmar.com; nativeyewear.com; kaenon.com, read 2026-11-10), and the closest published tier is the Goodr BFG at 147 mm (goodr.com, read 2026-11-10), which is 8 mm below the width needed, computed from 155 mm and 147 mm (woolet.co, read 2026-11-10; goodr.com, read 2026-11-10).

What temple length is long enough? A temple of 145 mm (size-charts.com, read 2026-11-10) is the start of the long band, which runs to 150 mm (size-charts.com, read 2026-11-10). In the tables, 12 models reach 135 mm or more, counted from the two tables below, and only 4 models reach 145 mm: the Kaenon Solvang at 145 mm (kaenon.com, read 2026-11-10), the Kaenon Venice at 152 mm (kaenon.com, read 2026-11-10), the Smith Lowdown XL 2 at 145 mm (smithoptics.com, read 2026-11-10), and the Ray-Ban New Wayfarer Classic RB2132 58 at 145 mm (ray-ban.com, read 2026-11-10).

Does hat size predict frame width? Hat size predicts the median, not a single face (woolet.co, read 2026-11-10). At hat size 7¼, head circumference is 58 cm (woolet.co, read 2026-11-10), median temple width is 155 mm (woolet.co, read 2026-11-10), and frame front needed is 155–158 mm (woolet.co, read 2026-11-10), with a scatter of 4–5 mm (woolet.co, read 2026-11-10) either side of the median, and FatHeadz states that hat size does not help determine width (fatheadz.com, read 2026-11-10).

Which models have all three numbers published? Twelve models have all three numbers published on the brand site, listed in the first table above: Goodr BFG, Goodr Retro G, Costa Fantail PRO, Costa Blackfin PRO, Costa Reefton PRO XL, Costa Whitetip PRO M, Native Wells XL, Native Badlands XL, Native Tavern XL, Kaenon Solvang, Kaenon Venice, and Kaenon Salton (goodr.com; costadelmar.com; nativeyewear.com; kaenon.com, read 2026-11-10).

What if a model has no published total width? Treat the total width as not verified and check the other two numbers before buying (oakley.com; ray-ban.com, read 2026-11-10). Nine models in the table have a not verified total width, including the Oakley Holbrook XXL, whose oakley.com page publishes only an unlabeled size figure of XXL 145 mm (oakley.com, read 2026-11-10), and the Ray-Ban Aviator Classic RB3025 62, whose temple length is 140 mm (ray-ban.com, read 2026-11-10) and bridge width is 14 mm (ray-ban.com, read 2026-11-10).