Unfortunately the Paltybus bags has abandoned me for many, many years. This existed in the same form no longer to buy, so I had to qualify a new manufacturer. My result was the interpreter. He is very good in terms of closing and cleaning. The dense Completing the hose is inovativ within it "Trinbeutel Community". I use it less than we thought, but it is an option. Schön is the angle-piece, so it is good also for the motorcycle helmet. The additional dust is a plus. The dense Completing the headpiece by twisting is another Plust.
A star will cost the absence of at Platybus usual tubeless closure (similar to that, a Spülmittelflachel, pull open, depress closed - but without hose) there not there. That I lack.
A second star is lost because the hydration system during heavy imbibing fluid feeding air. This is a reduction of the efficiency unangenhme. Camelback and Platybus do not.