Gray mark on front pocket, haven't tried to wipe it off, but I imagine it would wipe off fine. Run from morning to night—this lightweight, slim-fitting vest is perfect for transitional weather. Glyde Lightweight Glyde fabric has a durable water-repellent finish water-repellent four-way stretch lightweight Rulu™ Stretchy, naturally breathable Rulu™ fabric is sweat-wicking and buttery soft four-way stretch sweat-wicking buttery-soft handfeel naturally breathable