Aspire Catalyst Breathable Wader features eVent® waterproof-breathable technology — the most breathable-waterproof membrane available. Arc-Welded stitchless design shaped with anatomical seam-mapping that mirrors body movement with minimal seam fatigue. Featuring a new streamlined fit that minimizes bulk for maximum mobility. The boot is packed with PrimaLoft boot insulation and built around an industry-first PrimaLoft Aerogel boot insert to keep feet insulated, even while standing in the most severe, frigid cold water. To top it off, Banded Aspire waders are protected with a 3-Year AspireArmor+ Guarantee: no-hassle returns/repair process covers defects in workmanship and materials.