Arc'teryx Shirt Mens Large Satoro AR Crew Neck Wool Blend Base Layer Top FLAWS* Approx measurements are in the last 2 photos. Pit to pit: 19". Length: 27.5". Material: Wool/Nylon/Spandex blend. *Stains on one arms and small holes on both the front and back. Also a couple of thinning areas and a few spots where the stitching has come undone along the hem. Built for extended time in the backcountry, the men's midweight Arc'teryx Satoro AR crew-neck base layer top employs core-spun yarn technology to supply wool performance with enhanced durability.