SIS offer a superior range of trusted sports nutrition products designed to help you prepare, perform and effectively recover from exercise or endurance.  Considering a 2% loss in hydration through sweating can result in a 10% loss in performance, correct hydration and nutrition are vital for the active body.


At Countryside Ski & Climb we offer a comprehensive range to suit your needs whether competing or to correctly rehydrate from a bottle or backpack. It is a common misconception that water alone is enough to hydrate so next time you are considering a long day out in the UK somewhere check out SIS rather than just choccy bars and a tea-stop to give you a helping hand.