Aerial Ultra-Lightweight Cap gsi outdoors drinking cups flap with a snap closure

flap with a snap closure for security

and is also available in wide and extra wide

GORE-TEX: GORE-TEX keeps your feet dry -from the outside as well as from the inside

So - water resistant rather than Waterproof

1% Elastodiene

Aerial Ultra-Lightweight Cap gsi outdoors drinking cups flap with a snap closureMinimalism meets performance in Sunday Afternoons' Aerial Cap. Ultra lightweight fabrics and construction feel lighter than air, yet somehow still provide UPF 50+ sun protection for those long runs and hikes. When you're going strong, ventilation and wicking keep you cool and dry. Our stretch comfort sizing ensures that hat induced headache won't sneak up on you and ruin the momentum. Going the distance? Don't forget the Aerial. PRODUCT FEATURES: UPF