I bought this for mountain biking and have been very happy with this water bottle! The nozzle, is amazing. Hands down, so much better than any normal squeeze top bottle. I usually avoid squeeze bottles due to leakage, but this does not leak at all! The nozzle locks and unlocks with ease and the water pressure is ideal. The insulation works well, but it doesnt blow me away. Ice will melt but your drink will remain cool... Definitely better than a standard bottle's insulation though. Highly recomened this product, nice work CamelBak!