So, after almost 3 months of wearing the belt, here is my opinion, which partly reflects other reviews. The idea of how it works is really ingenious and practical. The strap is excellent, durable, attractive. However, in my case, the buckle was disappointing. As others have said, the buckle is quite heavy. This is not in itself a breach of the terms of the contract. The problem is that the tension of the spring that keeps the buckle flat doesn't stay flat when the belt is worn. I'll try toβ¦