Design: Available with an adjustable gusset for the perfect fit In-Shoe Comfort: Breathable mesh sandwich-fabric lining improves air circulation Combines premium rubber and neoprene for comfortability, functionality, and a boot ready for work Durability & Traction: 100% waterproof, 100% MUCKPROOF Rugged outsole design bioDEWIX(TM) dry footbed insert topcover with NZYM(TM) for odor control and moisture management Warranty: All Rocky(R) products have a one-year limited warranty in normal use, against any manufacturing flaw(s), defective materials or workmanship. This warranty also covers GORE-TEX(R) bootie liners against leakage for one year. Products with all other waterproof construction are guaranteed waterproof for six months from the date of purchase.