The KingsBox knee sleeves are made of neoprene and are therefore very flexible. They do not cause any discomfort during any exercise (squat, snatch, clean & jerk, deadlift, etc.) and give you additional protection during the rehabilitation phase or to prevent injury. The knee sleeves are designed for those who train weightlifting, powerlifting, gymnastics etc. whether you are a beginner or an expert. In addition, using the KingsBox knee sleeves will keep your joints warmed up, even if you take a break.Measurements (knee diameter):• S = 31 cm• M = 33 cm• L = 35 cm• XL = 37 cmSold individually