The Hydrastation PRO open water swimmer buoy, in addition to great visibility and buoyancy, allows the swimmer to hydrate quickly and effectively thanks to the external hose with soft bite valve connected to the 1Litre bladder housed inside the buoy. The external mesh pocket allows quick access to energy bars or gels. This is designed especially for long-distance swimmers, where proper hydration is a key factor. With the Hydrastation PRO open water buoy, you will be seen from far away while swimming, increasing your safety and peace of mind. Plus, if necessary, you can hold on to the buoy to rest thanks to its great buoyancy.