REI's return policy is incredible. Within 1 year, any amount of use, if your purchase fails they will accept it back for a full refund for any reason at all. However, sometimes it is a bit wasteful: they only offer a return-and-replace course of action. If a subpart fails they don't allow individual part replacement, nor will they give you the parts necessary for repair (I had an REI tent pole fail, I requested a single section of repair pole and was denied – only the whole tent could be swapped.)