Sanabul Essential Gel Boxing Kickboxing Training Gloves Performance Engineered Leather construction. High quality and durable material is easier to clean and maintain Gel Impact Protection Foam. Gel infused foam provides superb protection and softness to help prevent injury to your hands while training Longitudinal Arch Design. Constructed to fit the natural curvature of the hand for proper fist closure while striking Secure Hook and Loop Closure System. Ensures a secure fit for training while making the gloves easy to put on or take off Mesh Palm. Helps keep hands cooler and increases breathability of the gloves. PLEASE NOTE THE SIZE GUIDE IN THE DESCRIPTION BELOW. THE MOST COMMON SIZES FOR WOMEN ARE 8oz, 10oz, 12oz. FOR KIDS THE MOST COMMON SIZES ARE 8 OZ AND 10 OZ.