Nice, casual button down shirt from Euro outdoor brand Mammut, purchased at REI. Style is called the Asko Shirt. Size is Mens XXL. Colorway is called Jay/Sprout. Description: The lightweight Mammut Men's Asko Shirt is ready for adventure whether you're flying to Europe, backpacking in Yosemite, or hiking close to home. Nylon and polyester work together to help this shirt dry quickly, wick moisture, provide a UPF of 40+, and stay strong against abrasion. Mammut also added an antimicrobial treatment to resist odor over the course of a long trip. Laid flat/unstretched, chest measures approx. 26" across from underarm to underarm. Worn and washed once, in EUC!