The 5.11 A/T 8” Side Zip is a performance boot built from the sole up to increase performance. The All Terrain Load Assistance System (A.T.L.A.S.) is a force multiplier for those who carry heavy weight on long shifts. The boots were developed to work with your "work weight". This boot is constructed of nylon with high abrasion air mesh, a water resistant leather upper, and because so many professional jobs demand it - a polishable toe. Additional features include a YKK® side zipper and a locking ankle eyelet, and a high traction outsole so you can take those corners in a foot pursuit or run headlong into whatever challenge you’re up against. - Polishable toe - Water resistant leather upper with high abrasion air mesh nylon - Full-length YKK® side zipper - Locking ankle eyelet for secure lacing and fit - Slip and oil resistant high traction outsole - 5.11 A.T.L.A.S. Technology Support Plate - Echo Foam (TM) high rebound/energy return PU and Force Foam(TM) lightweight PU impact cushioning - Ortholite® footbed - 5.11 A.T.L.A.S. Technology