This fanny pack has worked great for me while paddling my SUP. I wear my inflatable life vest in the front, and this hydration pack in the back. The combination doesn't bother or hinder me in any way while paddling. The only downside is cleaning the HydraPak pouch. There are two side pouches that are difficult to access. My technique: rinse well, blow it up with air (using the tubing), let is stand upside down till the water has collected by the opening, open it and dry it, blow it up again and store it that way.