Built for weeklong and long-term backpacking adventures, the Osprey Men's Aether Pro 70 Pack features design elements focused on lightweight comfort and durability. The LightWire™ peripheral frame distributes a packed weight of up to 60 lbs to the hipbelt, and highly abrasion-resistant NanoFly™ fabric keeps your cargo secure through all the bumps and bruises on the trail. When the heat kicks up and you're moving fast, the breezy AirScape™ backpanel will help prevent sweat build-up against your back. The top lid has a zippered pocket for keeping small essentials handy, and it's fully removable for further weight savings. Attachment points for your ice tools, trekking poles, and sleeping pad ensure a home for all the bulky gear needed for your mission. The removable side compression straps allow you to keep your load close to the back, whether you're packing ultralight or you gobble up your food on a thru-hike before your next resupply.