For running marathons, triathlons, and ultra racing. Spacer mesh design provides a plush softness to your body while maximizing breathability. Includes two 24 oz BPA free bottles in the rear as well as two storage compartments in the chest, and two mesh shoulder pockets. Rear shock cord is great for a light weather jacket or layering item.
- Weight without bottles: 10oz.
- Storage = 198 cubic inches