The Surplus Sweater is made from soft merino wool. The clean, slim fit and waffle stitch are both inspired by vintage military thermals. It features a straight hem, ribbed cuffs, and careful stitching throughout. Not too heavy and not too light, it’s the perfect layer for the cooler months beneath your favorite button-down, and even works year-round all on its own. Waffle Stitch Double-Layered Crewneck Collar 1x1 Ribbed Cuffs and Hem Style SW0670154