Very Pleased

By Katie Ranked #338 - Water Reservoirs April 10, 2009

I've only tested this out at home, so I can't vouch for it's durability over time in tough conditions, but so far so good!
I was worried that the blue plastic piece across the zip opening would be cumbersome, and unnecessary weight, so I tested the bag without it. I was pleasantly surprised when the piece slid off easily when I tried to remove it, but I didn't get the feeling it would slide off accidentally. Once I filled the bladder up with water, I squeezed it and flipped it around to test the zip closure, and it didn't leak or show any sign of weakness. I also attached the drink tube (no leaking or dripping!) and taste-tested the water (tasted fine to me). When I took the drink tube off a small drop of water came out of it, but that was all. I saw no reason to worry about it dripping significantly or squirting when taking the tube on and off, which is a relief.
I bought the 3 liter/100oz to put in an Osprey Atmos 65 pack, and it fit fine. This is the largest size recommended for that pack, and the top did stick out a bit from the hydration reservoir, but mostly because of the blue sliding piece (which can be removed).

View Details: Platypus Big Zip SL Hydration Bladder

Helpful Votes: 1 Yes