U.S. Alteration introduces its Thermal Military Pack collection for summer 2013. The lineup has a selection of loose fitting basics that include sweatpants, crewnecks, and short sleeve hoodies. These are light thermal items that could be worn alone or as base layers. The highlight of the collection is a sick pair of camo pants that combines four different patterns into one. When have you seen that before? Check out these U.S. Alteration stockists for the drop.

[via U.S. Alteration]