85% Nylon, 15% Spandex Imported HUK: Uniting anglers through performance-engineered, technical gear designed to fuel your passion and pursuit no matter when, where or how you fish STAIN RESISTANCE: Stain Resistance treatment keeps stains from sticking and makes it easier for stains to wash out SUN PROTECTION: This fishing pant protects your skin from the sun's harmful rays - Huk added the most advanced sun-blocking +50 UPF materials to their apparel to block both UVA and UVB rays STRETCH: Fabric gives you the flexibility and stretch you need for comfort, while maintaining shape and fit COOLING FIBERS: Cooling fibers work to remove heat from the surface of your skin, helping to dump body heat and keep you more comfortable and on the water longer