The Bauerfeind Achillotrain Achilles Brace is designed to relieve pressure placed on the achilles tendon without restricting mobility. The gel padding delivers targeted massage along the achilles tendon and stimulates the surrounding muscles. The sleeve is medical grade compression (20-30mmHg) to help reduce swelling and increase blood flow to the area. 
 
https://www.bauerfeind.ca/products/bauerfeind-achillotrain-achilles-brace