Our Review – Tilley LTM6 Airflo Sun Hat:The Tilley LTM6 Airflo Sun Hat is a sleek oval-shaped brim for all around sun coverage, and our signature mesh ventilation to keep the cool air flowing. Made from 100% recycled nylon, it repels the rain, blocks the sun, and makes any adventure a whole lot breezier. Specifications – Tilley LTM6 Airflo Sun Hat: Rated UPF 50+ Guaranteed for life PFC Free DWR Finish Hidden Pocket 100% Recycled Nylon Buoyant Moisture-wicking Hydrofil® Tuckaway Wind Cord Mesh OEKO-TEX® certification Tips for better fit: Fits snug – we suggest you size up for the traditional Tilley fit (2 fingers inserted between hat and head) Responsibly Made in China Fabric - 100% Recycled Nylon Weight - 113g / 4oz Brim - Front & Back: 3 1/2" Sides: 2 1/2" Crown Height - Side crown height: 4" Tilley LTM6 Airflo Sun Hat