Elastic Knee Stabilizer Beige Small 12 13.5 20 30 Thigh High Carton Shipping Weight 8 Jobst Ultrasheer 30 40 WaistHi Carton Shipping Weight 8 The Sport Stirrup© is designed to help prevent ankle injuries the Sport Stirrup is based on the Air Stirrup Ankle Brace but has a narrower design for less bulk in a sneaker or shoe * The Sport Stirrup has anatomically designed shells that prevent inversion eversion * Each shell is lined with the patented Duplex aircell system * This exclusive system incorporates two pre inflated overlapping aircells distal and proximal that provide support and protection during ambulation * Features Semi rigid anatomically designed shells prevent inversion eversion * Patented Duplex aircell system for support and protection * Pre Inflated aircells for easy application * For Prophylactic protection * 5 (measurement taken just under the knee cap while knee is slightly bent) * Elastic Support for Prevention Treatment & Rehabilitation of the knee * Thermoskin elastics can expand contract and stretch and are made of a high grade durable material that permits a full range of movement and are comfortable to wear during a range of activities * Anatomically designed the elastic support will comfortably contour to the shape of your knee * It provides even compression and support to weakened and injured knees * It has side stabilizers to provide increased medial and laterial support Small * Fits knee circum