Sprints OG Hat insoles take your general shoe size

take your general shoe size and subtract 1

not on your feet

An "R Regular" width is a standard men's D width

It's not all about arch support either

H: men's 11-11

Sprints OG Hat insoles take your general shoe sizeThis moisture wicking, light polyester hat has mesh inserts to quickly cool you down so you can get back to running, walking, hiking, or whatever it is you do. FIT: Sprints OG hats feature an adjustable velcro closure on the back. The circumference is 22. 8 inches and expands to about 24. 3 inches which is a hat size 6 & 1 4 to 7 & 7 8. If you are an adult with a small dome don't hesitate to check out the kids sizes! FEATURES: Featherweight fabric