These ex-army sleeping bags were designed to keep our soldiers warm in challenging circumstances. Providing camp beds is relatively easy but sleeping bags are more difficult. In an ideal world these would the washed between each hire but that starts to get expensive - So we are not going to do but we will give them an air. So please don't hire these if you want prestine bedding - these are for the more rogued and tolerant of you out there who don't mind roughing it a bit. They may be a bit musty.. that's life and at least you are warm!