Rab's Veil Series consists of the lightest vests available to mountain runners, and the Veil 6 holds the largest capacity for long training days and ultra-marathons. Its 6-Liter volume is suitable for 2-Liter hydration bladders, both included soft flasks, a layer, energy gels, and more. The body-hugging fit and mono-mesh chassis offer a bounce-free ride, even when it's packed to the gills.