The perfect gloves for water sports, winter sports, or any outdoor activity. Seams are glued and blindstitched, preformed design for excellent fit. 3 mm thick for warmth, protection and durability. Rugged Sharkskin palms for sure grip with adjustable velcro wrist strap. Available in small, medium, large, and extra large sizes. Sizing Guide: Measure around flat hand at knuckles, thumb excluded for normal glove size. Those at lower end of size who want a closer fit, order one size smaller. Those at upper end of size who want a looser fit, order one size larger. S (7" to 7-1/2") M (8" to 8-1/2") L (9" to 9-1/2") XL (10" to 10-1/2")