I love the big opening for easy fills, and the option to dump ice cubes in it. This is awesome for the desert of Southern Arizona. Water is sealed at the top with triple redundant leak proof system. Being able to disconnect the hose at the bottom of the bladder to get it in and out of my AMAP II is a huge plus because I can leave the hose routed through my shoulder strap. Lastly I love how short the bladder is, which makes it easy to fit in shorter packs that don't rub on the belt line of my duty belt. This is also ideal when using the bladder in conjunction with radio packs.
