Regulation sources of speed can be debated however the persistence of the back of packers leveraging back pack turbo packs must be respected. For those who sometimes need a small boost Sprints introduces the storied speed demon racer affectionately known as Turbo Turtle.
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!
Sprints OG hats are machine washable (wash alone on cold) and HANG TO DRY!