The Arcteryx Maia 50 Womens Backpack holds plenty of gear for a three-day trip and carries comfortably. Oh yeah, did we mention its completely waterproof? Thats right. The Maia 50 Backpack uses waterproof 420ACT fabric, seam-sealed construction, and a roll-top closure to keep out every speck of moisture. Arcteryx included a pivoting waist-belt and adjustable shoulder straps to ensure this overnight backpack fits correctly as you hike in the rain or snow. This ultra-sleek design also includes a low-profile front pocket and two lid pockets to keep your necessities organized.