Maximize your workout with the comfort and increased ground contact of the women's Minimus 20v5 Trainer. 4 mm drop: due to variances created during the development and manufacturing processes, all references to 4 mm drop are approximate Asym collar with molded foam allows for a more natural heel fit Burrito tongue Synthetic/mesh upper Vibram Outsole Worn for one season, then my daughter had a growth spurt! Freshly cleaned Sfpf home