Meet the Bo by Protest. The Bo is the perfect summer T-shirt, casual and easy to wear. Made from 100% cotton slub jersey, this tee is soft and comfortable. There’s a printed chest pocket and the shoulders are dropped. If you’re not sure what a dropped shoulder is, it basically means that the shoulder seam is lowered to the top of the arm. The sleeves are rolled up for a relaxed look. The essential summer tee, the Bo by Protest.