ITEM NAME:2Pcs Men Women 2mm Neoprene Beanie Hat Scuba Diving Boating Swimming Cap M/L Description: - 2mm super stretch neoprene is very warm - wind and waterproof - Neoprene Beanie for any activity where you might get cold or wet - Maximum keeps the heat in and stops the massive heat loss from your head in the winter - Great for cycling, skateboarding, surfing, sailing, swimming, jet skiing, scuba diving, snowboarding, wakeboarding, kayaking, running, climbing, walking and anything outdoors in bad weather - Suitable for men and women, comfortable to wear Specification: - Material:Neoprene - Color:Black - Size M:28.5 x 16cm/ 11.2 x 6.3 inches (L x H);head circumference: 55 - 59cm/ 21.6 - 23.2 inches - Size L:29 x 15.6cm/ 11.4 x 6.1 inches (L x H);head circumference: 57 - 61cm/ 22.4 - 24 inches Package Included: 2 Pieces 2mm Neoprene Beanie Note: Please allow 3-5mm difference due to manual measurement. Thank you..Great for cycling, skateboarding, surfing, sailing, swimming, jet skiing, scuba diving, snowboarding, wakeboarding, kayaking, running, climbing, walking and anything outdoors in bad weather. - Neoprene Beanie for any activity where you might get cold or wet.