Here's what other sites are saying:
The Hydrapak Flume hydration pack keeps you hydrated on hikes, bike rides and runs. Durable polyester resists tears and abrasion for years of use. Air-mesh back panel and shoulder straps offer great ventilation to keep you cool during aerobic activities. Insulated reservoir compartment keeps liquids at a constant temperature; tube routing provides exit options at shoulder straps. Front flap offers easy access to 70 fl. oz. hydration reservoir, and features a zippered pocket to stow keys and other small items. Lightweight jacket or other items can be stashed under front flap for easy access. Closeout.
Toss the Hydrapak Flume Hydration Pack on for a comfortable and lightweight source of your favorite speed-juice. A sternum strap reduces movement when you're slicing and dicing through trees, and with plenty of storage for flat-repair gear and snacks, the Flume will make rides a hassle-free experience.
- Backcountry Outlet