The cap is easy to operate, even with one hand. The cap protects the mouthpiece from getting dirty. Easy to fill and fits well in a backpack.
Verified buyer

The Streamer hydration bladders, developed in collaboration between Deuter and Hydrapak, have always been a reliable choice. The handy slide-seal closure at the top ensures a tight seal, the materials are of excellent quality, and the bite valve is thoughtfully designed. In this version, the protective cap for the mouthpiece is improved: it won’t yank the valve off the hose even if handled a bit carelessly.
The product contains no PFAS compounds or BPA.