What Our Gearhead(R) Experts Are Saying:"I've raced in a lot of vests, but the Summit 10L Run Vest is one of the few that disappears once it's on. Super light, super breathable, and the fit keeps everything locked in place-no bouncing, even on techy descents."When every second matters and every ounce counts, the Summit 10L Run Vest becomes our secret weapon. Designed for race-day intensity and long training missions, this sleek hydration vest keeps our gear secure, bounce-free, and within reach. The North Face dialed the fit for maximum stability while running, using stretch-woven panels and breathable mesh to keep airflow up and distractions down. With dual soft flasks, a hydration bladder sleeve, stash pockets galore, and even a whistle and emergency card included, this vest is built for those who run smart, fast, and prepared. From mountain ultras to daily trail miles, the Summit 10L Run Vest is designed to move with us-not against us.