Here's what other sites are saying:
Smart hydration that includes a high flow valve and bomb proof fluid delivery system. Patent pending valve, with ultimate fluid delivery. Practically, an automatic watering system. With the UltrAspire Reservoir, there is no need for an on/off switch in addition to a bite valve like all other systems on the market. Simple in, simple out, doesnt get caught on things. Just be careful: youll run out of fluids faster because youll be able to get it with less effort.