Structured, soft, and modern, the Tentoma Utility Half Zip jacket is perfect for throwing over a gym top or a t-shirt. Wear it to the airport for a fashion forward comfortable layering look, or throw it on after you sweat it out at the gym. The fabric is ultra durable without being too stiff, with a washed vintage look you'll love. Tentoma Tentoma is a knit fabric's rugged brother. Soft and stretchy, but more structured and durable than the stuff you'll find on cheap fashion sites. Tentoma is our own custom blend of 95% cotton and 5% spandex, with just enough stretch to make them easy to live in.