The Red Wing 3141 Chukka boot comes with a durable polyurethane outsole. This boot was designed for indoor work and the flexibility these boots offered was vital for the workers they were designed for. Made in the USA. Leather type: Briar Oil Slick Leather Leather care: Mink Oil Construction: Goodyear Welt Sole: White Traction Tread Outsole Sizing: Stay your true size