Ueasy Breathable Light Weight Knee Sleeve Knee Brace Air Conditioning Room Keep knee warm Effectively relieves post-operative knee pain, strains and arthritis Ideal protection for knee tendons and joints, effectively prevents jumper's knee, quick relief for patellar tendon inflammation Breathable material retains heat and speeds up recovery period without creating skin irritation Knee brace helps prevent and treat injuries, keep moisture away Knee brace is Suitable for all sports and athletic activities Size S: 13*25cm, suitable for Knee Perimeter 28-36cm