evo.com | BlackStrap Long Underwear Tops > Hit the mountain. Hit the trail. Hit pause for a coffee at basecamp. The BlackStrap Spectrum Crewneck keeps up with it all. Built with high-function microfleece and reinforced nylon panels in key spots, it moves with you when you twist, bend, and climb, while staying breathable and warm. With a relaxed, low-profile fit, it layers easily over or under your favorite shell, giving you tech-forward comfort wherever adventure calls. Nylon Protected Zip Storage on Chest Insulation Micro Fleece | 230 GSM | 93% Recycled Polyester Fibers, 7% Spandex Nylon Shoulder Protection Stretch Woven Overlay 93% Nylon / 7% Spandex with PFC free DWR Regular Fit Relaxed, low- profile fit for easy layering | BlackStrap Spectrum Crewneck Men's 2026 - Medium Black | Nylon/Spandex/Polyester