100% SATISFACTION GUARANTEE: We offer 100% no risk money back guarantees if you’re not thrilled with your purchase for any reason. Just tell us and we will do our best to give you the most satisfactory solution. Sizes vary from difference brands. Use the size chart on the picture as a reference. If your measurements are between sizes, go to a bigger size. HUMANIZED DETAILS: Two non-slip silicone strips avoid sleeves up and down sliding and tumbling during exercise. The delicate sewing upper and lower cuffs fit tightly to the leg without limiting your mobility. Breathable fabric keeps your leg dry and odor free. COMFORT & PREMIUM QUALITY: 4-Way stretch fabric provides optimal compression to boost circulation and shorten the recovery time, while also avoiding the itchiness common to neoprene supports. High-precision 3D knitted technology ensures 360°perfectly fit your kneecap. Help you get the support you need with all day and all night comfort. MUTLI-USE: Our Knee braces support the movement of the knee during sporting activities through gentle, beneficial compression. Avoid too much strain on the knee. Widely used in many sports such as workouts, running, squats, cycling, hiking, lifting, golf, tennis, dancing, football, volleyball, cross Fit and any other everyday activities. Universal for men & women. TARGETED PROTECTION: Beister knee sleeves apply stable support across your knees joint and afford a full range of motion, significant pain relief for meniscus tear, arthritis, joint pain, ACL and other conditions. With our sleeves, you will be able to tackle any activities by your way, while ensuring you are a step ahead in injury prevention!.