Targeted Heat Retention To Help Improve Circulation. Compression Helps to Reduce Swelling to Injured Areas Finished Reinforced Edges Provide Comfort & Prevent Rolling & Slipping Breathable Knit Material Releases Moisture Soft, Neoprene Panel Stitched Around the Knee Joint Provides Heat Retention for Soothing Warmth.Elasto-Preene is an Innovative Combination of Elastic & Neoprene Blend Materials.The ACE Brand Elasto-Preene Knee Support is designed to provide you with the optimal support you need while assuring proper fit and comfort;Provides light compression, support and therapeutic heat retention to help relieve symptoms associated with minor sprains, strains and arthritis.Size Selection: Measure circumference around mid-section of knee joint. Suggested Use: Size selection: Measure circumference around mid-section of knee joint. L 16-20 inches, 40. 6-50. 8 cm. Wear Instructions: Starting with the wider end, slide the support up the leg and over the knee Ensure that the woven area is at the front of the knee Care instructions: Hand wash in warm water with mild detergent. Air dry. UPC: 051131203785 Weight: 0.69 lbs