Mueller Green Adjustable Elbow Support helps to protect and support sore, weak, or injured elbows by adding compression to the affected area. The soft, neoprene blend retains body heat for increased circulation to help relieve pain, promote healing, and keep your elbow flexible. Comfortable for all-day wear. Mueller Green products are made from soft, non-petroleum-based materials, the green liner is made from recycled plastics. This brace is made of a treated antimicrobial material which makes it odor-free.