Icebug Speed2 Women's BUGrip BUGDri in Black. The BUGrip® outsole contains 20% recycled rubber. Midsole EVA contains 20% BLOOM® foam, which is made from algae from overgrown lakes. The BUGdri™ membrane is made of 50% GRS certified and recycled PET polyester. Upper RipStop textile is made of bluesign®, solution dyed and 100% recycled GRS certified PET polyester textile. Insole: OrthoLite® Hybrid®, lined with 100% recycled GRS certified PET polyester, which is bluesign® certified and solution dyed. Removable. Lining: Fleece. 100% recycled, bluesign® and solution dyed, GRS certified PET polyester textile Midsole: Lightweight EVA with 20% BLOOM® Foam, ESS stabilizer Outersole: Rubber with BUGrip® carbide steel tip studs Upper Part: RipStop textile made from bluesign®, solution dyed, 100% recycled and GRS certified PET polyester textile / Protective PU mudguard. Waterproof