Allergen free and anti-slip, it is very comfortable to use. Open knee brace protector. Adjustable with durable hasp. Applicable: Knee pain and discomfort, mild strain / sprain, knee fatigue, patellar instability, fitness, sports and so on. Wonderful companion when you play football, basketball, volleyball, mountaineering, etc. Material: 50% Polyester fiber ,15% Nylon, 20% Rubber,10% PU, 5% Spandex Item size: 44.5 * 22.5cm / 17.5 * 8.9in Item weight: 79g / 2.8oz Package size: 25 * 15 * 3cm…