Sport.woot.com has select Hydration Packs on sale as listed below. Shipping is $6 or free w/ Prime.
- 2L Teton Sports TrailRunner 2 Hydration Pack w/ Bladder (Blue, Green, Orang, Red) $19.99
- Teton Sports Oasis 1100 Hydration Pack w/ 2L Bladder (Olive Green, Black, Bright Blue) $32.99
- CamelBak Octane 25 Limited Edition Hydration Pack w/ 2L Bladder $114.99 - OOS
- CamelBak Women's Zephyr Limited Edition Run Vest w/ 2L Bladder $99.99