Stays cool in 95 degree weather!
I am absolutely thrilled with this bladder and insulating sleeve. I just finished a 3 hour hike in 95-100 degree weather and the water stayed nice and cool the whole time. I agree that the hose insulation is too wide and removed it, but it will be handy when used on a ski trip to prevent freezing. I also like the zip top since it is easy to fill, clean and dry. Definitely recommended.