Four tees, four jobs. One for training, one for heat, one for every day, one for rest. Each cut for what it's actually made for.
One tee can't do everything. Light enough for intervals and it looks thin under a jacket; heavy enough to hold its shape and it holds sweat too. So there are four, each cut for the job it's actually for. Designed in Toronto. Sizes S through XL, thirty days to return free.