Part of Osprey\'s new collection for 2017, the Stratos 24 is perfect for those looking for a ventilated day pack with enough space for extra layers, food, water and equipment for hikes in changeable weather. The fully adjustable AirSpeed™ ventilated back system with breathable suspended mesh provides comfort in warmer climates, even when the pack is full. A durable, detachable raincover helps to keep the contents of the pack dry should the weather take a turn for the worse. Stratos 24 is equipped with a large panel opening, an easy access pocket on the top and a large, vertically zipped expansion pocket on the front which is ideal for storing a jacket or spare layer. The Stratos 24 is compatible with all Hydraulics™ and Hydraulics LT™ reservoirs, so you won\'t need to keep stopping to rehydrate.