Hyperlite Mountain Gear 55L Med NorthRim. Brand new, missed returned, bought two sizes for son. Extra for sale. The 55L liter version is measured by internal volume not including pockets so it will hold all you need with a great roll top tie down system and an extremely adjustable top Y strap. Internally taped Dyneema pack that is highly water resistant. Built with woven Dyneema where it counts it is built for slick rock and canyon country and is abrasive resistant with sturdier Dyneema. Weighs just two pounds 2 ounces. Details including sizing can be found at HyperlitemountainGear dot com.