UltrAspire - ISO Versa 2.0 Handheld Energy Drinks This pack includes an UltraFlask

This pack includes an UltraFlask 550 Hybrid Bottle that can fit horizontally in the insulated compartment and has room for an alternative bottle in the upper quick stash pocket

This pack features UltrAspire's new UltrAcool Light Mesh

And the removable 3

"Perfect for long training runs

UltrAspire - ISO Versa 2.0 Handheld Energy Drinks This pack includes an UltraFlaskThe Iso Versa 2. 0 Handheld is a natural and comfortable way to carry your fluids with no gripping necessary. This handheld is equipped with a simple to use SR buckle that keeps the bottle in place. The hand strap features our Ultra Light Mesh for a comfortable and lightweight fit. The Iso Versa 2. 0 now has dual sided adjustment to help fit the left or right hand perfectly. This handheld can be pushed up on the wrist or arm to run with poles or bring