Caterpillar Outdoor Boot With A Rugged And Technical Design.Built From Durable Leather With Metal Hooks And A Padded Collar, It Features A Grippy Outsole Perfect For Uneven Terrain And Outdoor Exploration.Composition:Outsole Durable Rubber Outsole +Srx For Extreme Slip Resistance.Construction Strobel/Cement Construction.Lining 100% Post Industrial Recycled Lining.Footbed Molded Pu Foam Footbed For Underfoot Comfort.Midsole Durable And Lightweight Eva Midsole.Footbed Cover 100% Post Industrial Recycled Sock Lining W/ Cleansport Nxt Pro-Biotic Odor Control.