For excellent quality and design, look no further than the brand Osprey. Whether you are walking in the rain or during the warm, summer months, these packs will keep you comfortable in all conditions. The Kyte 39 has the Airscape back panel which keeps air flowing and giving excellent load support at the same time, along with the Spacer Mesh harness designed specifically for the female frame. The adjustable torso length makes sure you can obtain the best fit possible. The Kyte 36 is a great size so you can use it as a day pack or for leaders needing to carry extra clothing or equipment.