When you are heading out for a long day hike make sure the Cloud Walker is on your back. Featuring a 2.5-liter hydration reservoir you will be hydrated no matter how long you are on the trail. A comfortable and cooling back panel does its best to keep your back from getting too sweaty and the removable waist strap gives you versatility when it comes to carrying options. A roomy 18-liter interior and stretch pockets on the outside of the pack give you room for a full day worth of layers and supplies all in a compact comfortable package.