The Adistar Cs 2.0 Shoes Were Designed To Take Your Everyday Run To The Next Level. Inspired By The Idea Of Perpetual Motion, They're Designed With Heel Strike Protection And Upper Support In Mind. The Dual-Density Repetitor And Repetitor+ Midsole Combines Lightweight Foam For Springy Cushioning With A Firm Compound That Cradles The Heel. Discover The Art Of The Long, Slow Run Today.