“Four marathons in this kit and it still feels flawless. The pockets held 5 gels, my phone, and electrolytes with no bounce, no bulk. Weightless and feeling good even in London’s heat.” Jessie, co-founder of Pruzan, wears her ideal racing kit: the Hourglass Bra and Curved Marathon Shorts. Last 3 photos by @simonrphoto⁠ ⁠