The ultimate hat for outdoor adventures, the LTM5 AIRFLO Slim Sun Hat has foam in the crown which allows it to float in case it gets tossed in the water. Made using certified UPF 50+ fabric to provide maximum protection from the sun, as well as a Durable Water Repellent (DWR) finish to help keep you dry in light showers._Rated UPF 50+Guaranteed for lifeDWR (Durable Water Repellent) FinishHidden Pocket100% Recycled NylonBuoyantMoisture-wicking HydrofilTuckaway Wind CordMeshbluesign approvedFront: 2 5/8”Back: 2 3/4”Sides: 2 1/8”Side crown height: 4”Fabric: 100% Recycled nylon Mesh: 100% PolyesterWeight: 85g / 3oz_