Description of Downunders Green Cork The most technologically advanced designed foot bed available today! Features: Dynamic Heel Cup—Superior Shock Absorption Honeycomb Stabilizer—Lasting Durability, Contours To The Foot Top Cover Material—Moisture Wicking & Insulates Full Length Footbed—Soft Ride Under Foot Self Molding “Active Arch”—Proven To Enhance Healthy Function Full Length Groove—Neutrally Aligns & Positions Foot Forefoot Arch Support—Spreads Body Weight Across Foot