I bought this for a trip to Southeast Asia and it definitely did the trick. It's fairly lightweight and didn't cause too much sweating.

My only complaint is I wish it were just a little bit taller. It just fit my passport and I had a very hard time finding a wallet that could fit inside. You can carry your money and cards just directly in it (which I eventually did, but because I had a few cards and IDs with me in addition to cash, I wanted to be able to keep things a little more organized, using a small wallet. Other than that, it served its purpose.