Nathan Vapor Airess 8L Hydration Pack 4.0 + 2L Bladder Indigo

Designed for women, the Nathan VaporAiress 4.0 8L Women's Hydration Vest is made for hydration storage on the go! This vest has an 8-liter capacity and a slim design that moves with your body. The Quick-Fit straps in the front make it easy to adjust while you run, and the Adaptive-Fit design helps the vest stay secure and comfortable. Breathable 3D mesh on the shoulders and back lets air flow to help keep you cool and dry. Carry your hydration in the front pockets that hold up to 20 oz soft flasks (not included) or use the included 2L hydration bladder in the back. Extra stretch pockets, a zip pocket for your phone, a back bungee cord, pole holders, and a strong, fast-drying back panel give you plenty of space for gear.

Adaptive-Fit™ design for an easily adjustable and personalized fit
Dual adjustable sternum straps to customize the fit
Breathable mesh quickly removes sweat to keep you dry
Includes a 2 L / 70 oz Hydrapak® bladder with quick-release valve
Hydration guides allow the tube to be run over or under the arm on either side
Clip for the reservoir hose keeps it in-place
Two upper chest stretch mesh zipper pockets for a phone or smaller items
Two lower water-resistant zipper pockets for a plus-sized phone, salt tablets, or additional hydration flasks (up to 22 oz)
Four front holsters for bottles, gels, a headlamp, or other small essentials
Upper back storage stashes extra layers and other essentials
Large rear kangaroo pocket for larger apparel or nutrition items
Rear zipper pocket holds lightweight apparel, warmers, and accessories
Slide-through lower back pocket for a light jacket or extra soft flasks
Trekking pole attachments on the back
360° reflective details increase visibility in low-light conditions
Pack volume 8L storage
Bladder Details

2 L / 70 oz Hydrapak® Slideseal bladder
Fills easily with wide mouth opening and fold over/slide seal closure
Durable, kink-resistant drink tube
Fill scale lets you monitor fluid volume
Reversible design for easy cleaning and drying
BPA and PVC free