It's called a Sawtooth

This is my new sawtooth sleeping bag, in which I can sleep in comfort down to -12. How I wish I was sleeping in this after an adventurous day in the mountains or at sea, as opposed to sitting in my student flat, after another mundane day in the city and hours of lectures about various boring crap. Then to top it all off I ripped the button of my coat while queuing in tesco, and don't have a needle or thread to fix it!!

Good day all in all........