Purchased the winter underquilt with attachable blanket. I love the feel of this UQ, it feels and looks like down, definitely can feel the heat building up as soon as I get in! Absolutely awesome bit of kit, it's long enough to cover the majority of me (I'm 6'3"). It's so easy to setup aswell, the shock cord on each end to cinch up any potential air gaps is a massive bonus, my last UQ I had to install my own. Once again a very well thought out product, very lightweight, I absolutely love it in all honesty.