Think of the Glycerin 11 as your foot's butler, catering to your every want and need with plush, conformable comfort in every step. The luxury begins with an ultra-comformable upper that uses innovative 3D Fit Print overlays to create structure and reduce weight. We've also removed the midfoot shank to optimize ground contact for a transition that puts the 'oo' in smooth. Finished with fresh colors and hot looks, Mr. Belvedere's got nothing on this shoe. Bootie construction with seamless fit Full-length Caterpillar technology promotes smooth transition and ride Extremely soft feel