Helikon Baseball Cap PenCott GreenZone 100% Nylon Comfortable, durable & lightweight One size fits most Hook-and-loop size adjuster for better fit. Perforated air holes to keep head cool Soft hook-and-loop panels on front, top & back. Embroidered Helikon logo on front hook-and-loop panel Material: NyCo RipStop (50% Cotton, 50% Nylon). Weight: 70g