Hat Sizing: Crown Circumference, Brim Width and the cm Gap
Head circumference decides whether a hat stays on; brim and crown decide whether it looks right. How to measure, convert and choose between sizes.
Sep 10, 2026
Hats, scarves, belts, eyewear and watches — the sizing systems nobody publishes.
5 articles
Head circumference decides whether a hat stays on; brim and crown decide whether it looks right. How to measure, convert and choose between sizes.
Sep 10, 2026
Belt width decides whether a strap threads your trouser loops at all. How to match width to loop, buckle to formality, and sizing to the hole you use.
Sep 19, 2026
A silk square's size decides which knots it can hold, and its weave decides whether they stay tied. Here is how 90, 70 and 50 cm squares differ.
Aug 6, 2026
The three numbers inside a sunglasses arm are lens width, bridge width and temple length. How to read them and measure your own face before you buy.
Sep 6, 2026
Case diameter tells you how large a watch looks. Lug-to-lug tells you whether it fits. Here is how to measure your wrist and read the number that decides.
Sep 4, 2026