•Lightweight and extremely flexible construction. •Breathable sport knit. •Full-grain leather trim. •J&M Smart Degree Technology™ temperature-regulating polymers that line interior activate and both hot and cold temperatures, so feet feel just-right all day long. •Removable, dual-density cushioned footbed. •Flexible, light-weight outsole for cushioning and comfort. •Durable rubber outsole pods. •Leather Working Group Gold Rated tannery.