evo.com | BlackStrap Long Underwear Bottoms > The BlackStrap Spectrum Pants move with you, flexing, breathing, and protecting where it counts. High-performance microfleece keeps you warm, while reinforced nylon panels take the hits in key areas. With a relaxed, low-profile fit and articulated design, they layer effortlessly for any adventure, from skinning up to shredding down or wandering off the beaten path. Nylon Protected Zip Storage Insulation Micro Fleece | 230 GSM | 93% Recycled Polyester Fibers, 7% Spandex Regular Fit Relaxed, low- profile fit for easy layering Overlay 93% Nylon, 7% Spandex with PFC free DWR Moisture-Wicking Micro Fleece | BlackStrap Spectrum Pants Men's 2026 - Medium Black | Nylon/Spandex/Polyester