Boxing gloves made of artificial leather airmash for ventilation best for trainingInterior structure: One piece forming structure, incredibly durable, more protection, and fits your hands like it's made just for you.Protection: Gel Impact Protection Foam. Gel infused foam provides superb protection and softness to help prevent injury to your hands while training, and great protection for your thumb too.Secure Velcro Closure System. Ensures a secure fit for training while making the gloves easy to put on or take off