Ideal Ergonomic Solution For People Seeking Comfort And Long-Term Durability! Highly Energized Zedlan Sponge Combines Softness, Resilience, And Durability For Exceptional Relief. 50% Greater Puncture Resistance And Five Times The Abrasion Resistance Of Traditional Sponge Products. Wear-Bond Process Molecularly Bonds Layers Together Without The Use Of Adhesives. Greater Overall Comfort Than Hard