Nike Trail Repel UV Running Jacket - Womens Size:XS who specializes in the biomechanics

who specializes in the biomechanics and energetics of running said: "The most striking result from this study was the consistency of the running economy improvements

Redesigned from the ground up

Adventure’s calling

A workhorse for technical terrain

ONE SIZE (small-medium):

Nike Trail Repel UV Running Jacket - Womens Size:XS who specializes in the biomechanicsWhether you're out for a quick forest jog or a longer mountain run, Nike Trail has the durability and adaptability to help make connecting with your surroundings easier, even in dynamic conditions. With UV protection and a water repellent finish, this oversized Ripstop jacket has you covered. And when it's time to shed a layer, stash it inside its own pocket and pack it with you so your run doesn't have to stop.