The PeaceShell River Shirt is a characteristically charismatic curve-ball design from Satisfy. Taking inspiration from vintage western shirts, but adding in a hearty dose of sci-fi fabrication, it's a super-lightweight technical shirt ideal for the trail. There's a lot going on here, but the main thing we should probably talk about is that custom-made PeaceShell™ micro-twill fabric. Woven in Japan, this lightweight recycled polyester dries fast, wicks moisture and thanks to that four-way stretch, offers full freedom of movement.

Combine that with rapid access chest pockets and anti-rub seams and you've got a truly idiosyncratic alternative to a running jacket when you need a little more than just a tee. There's even ice pockets in the back, for that perfectly-timed mid-race cool-down.