Exclusive XC4® waterproof performance and comfort Seam-sealed construction Waterproof leathers Axis Chassis™ System for support Dual width removable footbed to accommodate a custom orthotic or wide foot 100% recycled J&M Smart Degree Technology® lining provides temperature control. Removable, multi-density footbed with memory-foam and contoured arch support High rebound, ultra comfortable XC Foam™ midsole Highly-durable, dual density rubber lug outsole. Leather Working Group Gold Rated tannery.