Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Does the Osprey Men's 60m have a lower zip compartment to store backpack?
Document: Wonderful backpack for a reasonable price. Although Osprey is not cheap, I got a great deal on this backpack through Amazon. Wonderful build quality, impressive design, and innovative features all make this backpack a must-have.
The pack is beautiful! The functionality is incredible. The heat forming hip belt is awesome, and the pockets on it are perfect for a few small quick grab items. The water reservoir location is not inside the main compartment, now in its own buckled flap compartment just behind shoulder straps, makes removal and filling easier. The list goes on. Absolutely recommend for people who appreciate quality.
The multitude of compression straps kept the load tight which allowed me to keep a good centre of gravity and hence a good balance throughout the hike. The bag material is tough although not waterproof. I kept the sleeping bag in the bottom compartment where it was meant to be, but inside a waterproof bag which gave me piece of mind. I bought a raincover at Walmart for about $5 which fit fine and kept it dry in the rain.
The exterior water bladder sleeve was handy and perfect for the Osprey 3 liter bladder that I purchased separately. All in all, a good product that enhanced my hiking experience.
The Aether is very beautiful and well designed! This color (arroyo red) is particularly different and stands out of others backpacks. It has lots of key features. I'll put it to the test in a 3 day trekking next month. Congratulations to Osprey!
Bought for son, I have the Gregory Baltoro 75 and I prefer it for the Exterior pockets it has for the Water Bottles and the zipper pockets on the belt I can use for the Camera and small snacks - This Osprey seems durable enough, and other than that, it is a good pack. My son is rather thin, so it is a good fit for him - the Gregory did not fit to his body as well
Detachable lid is a great feature that I thought I would not use. However, keep first aid/survival gear and snacks in there to have on short hikes out of camp. Also store the pack with lid inside.To sum it all up: if you are looking for a large, customizable pack that is extremely comfortable...GO FOR IT!
The backpack  is comfortable, and are easily accessible compartments, the bad is that you should buy the raincover separately. I recomended.
This is the best backpack I've ever owned.It's super comfortable. There are a few thingsI wish were different but you'll find that withevery backpack because everyone is different.
This backpack is ultimate in convenience and fit. The harness system is the best I've ever had. Glad I made this pick. Great pack!
Answer: yes