100% brand new and high quality Features: Wormwood self-heating knee brace for knee pain for women and men use. Keep you knee and leg warm in cold days. Made of high quality material, elastic, skin-friendly, soft, breathable, stretchy, thick, thermal and comfortable to wear. 4 sizes for you to choose from. Super elastic design for a custom cozy fit. Easy to put on and take off. Thick thermal knee warmer providing 360 degrees protection, help keeping your knees and legs warm to relieve pain. Lengthened knee compression sleeve pads improve blood circulation&ventilation, avoid joint pain. Perfect for outdoor sports activities such as cycling, snowboarding, skiing, camping, hiking, running or as a daily casual wear to keep warm. Specification: Material: Wormwood Optional Color: Black, Gray Size: S/M/L/XL(Chinese Size,follow the size chart to select please) Size:SLength:28cm(11.02inch)Leg Circumference:30cm-35cm(11.81inch-13.77inch)Recommended Weight:40kg-52.5kg Size:MLength:28cm(11.02inch)Leg Circumference:35cm-40cm(13.77inch-15.74inch)Recommended Weight:53kg-60kg Size:LLength:28cm(11.02inch)Leg Circumference:40cm-45cm(15.74inch-17.71inch)Recommended Weight:60.5kg-67.5kg Size:XLLength:28cm(11.02inch)Leg Circumference:45cm-50cm(17.71inch-19.68inch)Recommended Weight:68kg-75kg Quantity: 1 pair(2pcs) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 pair(2pcs) x Knee Protector(other accessories demo in the picture is not included.)