Dear Priyanka, thank you very much for your review and reaching out. I will be able to help you and fix your problem. Ideal would be if you would come to our showroom and we can fit you with the proper size. For women with an hour glass shape it is better to wear the band higher up where your waist is narrow; otherwise the band rides up in the way you experience. I will change the text on the webpage to include this information. The leaking flask can be two things, either the flask is faulty and in this case we will give you a new one, or..... the flask has a nozzle where the pressure of your teeth releases the water when you drink,. However when the material of the band presses down on the nozzle, water can also be released. I am guessing this is what you experienced and this is easy to remedy by positioning the nozzle in such a way that the material does not press on the nozzle. We will give you a call and fix all this. The naked band is our best selling product and I am confident we can fit you with a size that suits your body. kind regards, Rianca