The Louis Garneau Men"s Biogel RX Cycling Glove provides a great grip and comfort for all day riding. The upper hand is made with 3D Mini-Mesh (85% Polyester/15% Spandex) fabric that reduces chafing and offers incredible breathability with UPF/SPF 20 protection and the multilayer silicone palm with gel padding offers unbeatable comfort and is made with Amara (40% Polyurethane/60% Polyester) fabric that is extremely water resistant and durable. Ergo Air Zone provides ventilation for maximum airflow during your ride. Microfiber thumb absorbs excess sweat and drips. Easily adjustable Velcro cuff. Sizing (Palm Circumference): S: 7-8", M: 8-9", L: 9-10", XL: 10-11", XXL: 11+".