LEOs have a need to keep things organized. I live and work where it gets cold and the weather can change every five minutes. As such I carry three coats everyday at work (soft shell, heavy insulated, and a full length raincoat). I have two of these bags in different sizes for my heavy winter coat and my rain coat. I use these for long term storage organization solutions. I can easily dig into my uniform pack to grab the coat that I need with out pulling everything out and making a mess.I would suggest putting a grimlock on the strap on the end of the sack so that when the sack is empty you can hook it to molle on the outside of pack. When the stuff sack is empty they are easily lost or misplaced.Also it should be said to make sure that whatever you store in these is dry when you put it in.In case anyone is wondering, the 8x18 inch size is perfect for keeping a MacBook Pro (15 inch) dry. I don't really trust my backpack in the pouring rain.I am storing a down jacket in this that I use when hiking. I wanted a bag that holds my jacket without taking up any more room in my backpack than necessary. I used the sizing chart to choose the size, and it suits my use perfectly. I shopped first in the local sporting goods stores but wasn't able to find anything this small and what I did find was more expensive than I thought was reasonable.Great light weight bag .I use these to put my shoes (often dirty (duh) or smelly ) seperate in my backpack so they dont touch my clothes or notebook .Perfect size for extra gear storage while riding my bicycle. I have temporarily used it to store my coat/vest, and arm warmers. Fits behind my seat using a couple of cords attached to the seat rails. Easy to use drawstring closure.Really light weight stuff bag. Made well. If you trying to save on weight this bag should help. Bought the 5x8 for my wife to store her hard shell ( rain ) pants in,I bought this in order to easily pack my puffy coat into my suitcase when I travel to colder climes. Works perfectly.Love All My Equinox Products! Tough & Lightweight! Forever Customer!El diseño está bien pero la tela plástica es demasiado delgada.Tough and well made.buen producto