Published by at 24/07/2026 Brand: Smartwool Model: PhD Ultra Light Material: 79% Merino Wool, 21% Nylon Neckline: Crew Neck Sleeve Length: Short Sleeve Color: Gray Pattern: Solid with Mesh Venting Features: Body-mapped mesh zones, PhD performance technology, moisture-wicking, breathable Flaws: Small holes/wear in the mesh underarm area as shown in photos Keywords: Merino wool, base layer, hiking, running, activewear, breathable, moisture wicking, outdoors, trail, athletic, performance, gorpcore, minimalist