1. All elastic construction.
2. Aluminum splints in back provide waist and spine support.
3. Triangular configuration correctly distributes pressure to tip of shoulder.
1. Small (S): inch 30~35, centimeter 76~89.
2. Medium (M): inch 35~40, centimeter 89~102.
3. large (L): inch 40~45, centimeter 102~114.
4. Extra large (XL): inch 45~50, centimeter 114~127.