The 6" Edge Walker Waterproof Moc Toe Lace-up boot in Haystack is waterproof and resilient. It's designed with a Ortholite® removable insert insole to give your feet maximum comfort throughout your busy day. Featuring a Newflex® compound outsole, Dri-Lex® 2000 lining, non-tarnishable antique brass grommets and waxed Sta-Tied laces. This boot is ASTM F2413-11 Electrical Hazard rated. Leather: HAYSTACK Construction: GOODYEAR® LEATHER FLAT WELT Lining: DRI-LEX® 2000 Shank: COMPOSITE Outsole: CRISTY IN THE NEWFLEX® COMPOUND Insole: ORTHOLITE® REMOVABLE INSERT