So far, I'm loving it! Two pockets store so much that I have alot of usable space even after packing for a 3 day hunt. Only downside is needing smaller bags or ways to organize small gear within the main pouch.

This has been a great addition to my F1 Mainframe. Has worked well during my archery day hunts.

Made from very good material comes in a very nice bag as well

My Vapor 5000 attaches perfectly to my Eberlestock F1 Mainframe. Balance is essential while walking up and down mountain ravines and the fit and finish with the Vapor 5000 and F1 provides perfect balance.

I took this bad into the Rocky Mountains this week for an elk muzzle loader hunt. This was by far the worst weather I've experienced during a muzzle loader hunt in Colorado. It was subject to wet and freezing conditions. The pack held up great! It backed all my gear in securely and fit to the F1 frame very well to make for a comfortable pack in and out. During the wet weather, it really kept everything it contained dry! Also, the two side pouches are very useful to hold water, as well as the internal pouches for holding my fresh extra water bladder and camel back. My hunting buddy actually remarked he wished his pack has two external pouches on his bag. Great product!

Plenty of room and light.

I've had the vapor 2500 and F1 main frame for about a month now and finally getting it all figured out lol. It's a super tuff frame and the pack is top notch. Better then most of similar value. I did a 6 mile hike today in rugged terrain with 20 pounds of gear and it felt amazing on my back. Definitely would recommend this pack to advid hunters and hikers! Thanks Eberlestock!

Bag came as advertised, plenty of room for a week long hunt.

This is a very roomy pack, built very well. Will be using in a few weeks for a multi-day alpine hunt. To test out the basics I attached it up to my F1 Mainframe and used it as my camping back a couple weeks ago. It worked great. Fit what I needed, with extra space. I was able to the Mainframe straps to compress down the extra space. Looking forward to using this more in the future.

Really pleased with the design and quality!