I really wanted to like this pack. I have the older model tempest 9, which I love, and regret not buying the tempest 30 at the same time. The pack has everyhing feature wise I am looking for. However, the newly "updated" back panel air foam mesh is EXTREMELY uncomfortable. The way the foam presses against the back and hips is aweful. If I could purchase the older tempest model I would. But sadly I will have to look for a pack from a different company. Deeply dissapointed with this product.