U.S. Navy Genuine Surplus Item Cold Weather A-2 Deck Cap New, Unused, Deadstock, Long-Term Warehouse Storage DSA-72, 1972 Vintage, Vietnam War Era Size: L (Large) 7 1/8 - 7 1/4 For reference, my hat size (head size) is L, but it feels tight when the ear flaps are tucked inside (probably size 7 1/8). A size 7 1/8 is M, so I think it's for people who wear M size hats. You can wear it if you use the ear flaps or flip them up on the outside, even if you are an L size. I use the same type of this hat, and XL is just right for me. I think it's usually for people who wear M size hats. Same item as the image. Shipped via Takkyubin Compact, so the item will be folded to fit in the box. Outdoor, Survival Game, Trekking, Hiking, Day Camping, Solo Camping, Shelter Half Tent, Bushcraft, Car Camping, Jimny, Jeep, 4WD, Wrangler, Military, Surplus Color: Green