Wolke7 heel insole is made of German medical-grade silicone. Heel cup effectively reduces the pressure and pain of the heel.

 Features
Relieve long-term standing and walking problems  ( Foot swelling, heel tingling, thick and rough skin with long calluses ... )
Comfortable and flexible, effective in reducing foot pressure 
Durable and easy to clean : General care only needs to be cleaned with water
The blue part is particularly soft: takes care of severely stressed position of the foot
Equipped with holes to improve comfort
Made in Germany, quality enusred
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