You Just Found The Softest, Squishiest, Spongiest One. The Cushion Sands Is Made Of Reef’s Signature Cushion Eva With Anatomical Arch Support, Offering You Total Comfort. A Lightweight Rubber Sponge Outsole Is Super Durable, And You’ll Be Pleased To Know That We Use 100% Recycled Material To Line The Slender, Synthetic Straps. Yep, We’ve Gone All Soft On This One.