I bought the belt, but unfortunately could not use, and will give it back! Advantage: - Is the only one I've found, which also offers spare bottles. - Materials and processing very good and reasonably robust. - Several pockets for mobile phone / MP3 player / key. Disadvantage: - Plastic bottles have not as high as "I" expected. - Main pocket too small for my S3, therefore the deduction of a star and the return!