The Cosy Legs is a high quality down foot and leg warmer to keep you warm when you're at camp. A simple but effective half size sleeping bag design it can also be used boost the temperature limits of sleeping bags, for wearing in the house and it's pack size makes it ideal for travel too.
Yeti says:
Warming short down bag. Cosy Legs is a unique down product that works as an additional inner bag on cold nights. Extremely useful in cold situations. This inner bag highly increases the insulation of the sleeping bag and expands the bag’s range of use. Cosy Legs has a small pack size for easy travel and doubles as cosy travel pillow when packed. A true travel companion in cars, planes and when experiencing the great outdoors.
Yeti's Cosy Legs Warm Short Bag is a great accessory. It is essentially like a half length sleeping bag designed to keep your feet and legs warm as it goes up to your waist. The whole bag zips into its own attached bag which also adds a layer of extra material across an area of high wear. An elasticated toggle allows you to cinch the top of the bag and trap the heat in. It is generously sized and although I've found that it can let air in it is comfortable to be able to move around in it.
The light weight and small pack size make it ideal for camping trips. It is most suited to basecamp trips where you are spending a lot of time at camp and may want some extra warmth for your feet and legs when it gets cold. However, it is also great for hiking trips if you suffer from the cold and it can be a good way to increase the warmth of your sleeping bag too. Overall, at this weight it's a great piece of luxury kit for keeping you warm.