Propper Series 100  6" Waterproof Side Zip Boot Black   Based on true U.S. sizing with free fit inserts for the perfect comfortable fit. These high quality materials will stand up over time to keep you moving.   The waterproof leather and 1000D Cordura® upper of the Series 100 Waterproof Side Zip boot can be pulled snug with the quick and easy NATO speed lace system. A special gusset behind the zipper helps keep water out while the triple density rubber foundation and an arch made from a durable compound will hold up to the rigors of fast-roping. The 100 Series is a great value in footwear. Propper footwear was designed for long lasting comfort and durability. All of our boots are based on true U.S. sizing to provide the perfect fit.   FREE fit inserts included to help achieve a precision fit AR 670-1 compliant flesh-out cattle hide upper (coyote only) Polishable full grain leather (black only) with 1000D nylon upper Durable, coated, speed lace hardware with 550 paracord lacing Fast-rope compatible arch design resists wear from ladders and fast-roping Ortholite® sock liner for comfort Washable open cell foam inserts contour to your foot for weight distribution and arch support Oil- and slip-resistant rubber outsole for excellent traction and impact absorption Open cell air mesh foam provides full foot air circulation for maximum comfort Anti-microbial breathable lining prevents odor and extends the life of the boot Triple stitching for durability NATO speed lacing system Premium tear drop eyelets Bootlace holder YKK side zippers with zipper guard Propper Series 100 6" Waterproof Side Zip Boot Black