Select Profcare Calf Support Black and Green 700074. The Select calf support is made of elastic materials with a high proportion of natural rubber. It offers high comfort and resistance to intensive use. It is useful both for preventing overuse injuries caused by training and as a support during rehabilitation. It provides stabilization of the area and improves proprioception. It stays in place during intense activity. Material: 46% natural rubber, 27% recycled polyester, 16% recycled nylon, 8% synthetic rubber, 3% elastane.