I have a Blowfish and it is barely acceptable for a short day hike. This is probably due to the fact that I don't really feel comfortable out trekking, especially in the colder times and when the days are shorter, without the gear to stay out overnight. The Blowfish may be "insulated" but when the temp is in the 90's and the dew point is in the 70's, the bladder is going to sweat just as much as you. I had hoped that the pack design which establishes a small air channel between the pack and the wearer's back would do much more to keep it comfortable but that falls short, also.
Bag o' Tricks
