Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great concept but poor quality and durabilty

Really loved them when I first got them, convienent to pack, easy to slip on, warm and waterproof.But they didn't even last through one winter. Wore them around one to three times a week for only 20 to 60 minutes at a time.By spring the strap had broken and the rubber had split leaving them very non-waterproof.If I would have needed for a situation to actually protect my feet from frostbite or immersion foot I would have been SOL.If these were $20 Totes overshoes it might be acceptable to sell a disposable item, but these are priced for what you can get a decent quality winter boot for. There's no reason they couldn't have used slightly better materials and made a decent product.