Llama Wool Blend Flat Brim Glow in The Dark Ultra Violet Reflective Heather Grey Snapback Trucker Hat by PhattyHallDesigns. These hats glow in the dark & are UV reflective so they will glow very bright when hit with CK5’s UV lights or if charged by any light. Each hat comes with a UV keychain light to charge the glow in the dark thread or to help you find that special something you dropped between the seats at the show. For a limited time every hat purchase includes a Jamizon.com insulated can holder. Please leave your requested size in the comments section at checkout. Sizes options are Tallboy, Slim (white claw & 12oz bottle) or 12oz Can. Phish Phd Llama Wool Blend Flat Brim Glow in The Dark Heather Grey Snapback Trucker Hat