Ease of Use
With a full length zipper carry bag, the Mammoth is easy to get out and to set up. The two pockets and drink holder stay out of the way of the folding frame and the carry bag stows nicely between the frame and the backrest. The Mammoth is easy to collapse but like many of the chairs in this test, it’s a fight to get the chair back in the carry bag. It’s a different fight from most as the Mammoth carry bag has a full length zipper closure so once the chair is in the bag it is totally secure while top loading drawstring style bags have the risk of loosening and dumping the chair out at the most inconvenient of times. The carry bag has two handles for easy hand carry or they can be separated and used like backpack straps for a hands-free carry.

Comfort
The Mammoth has a padded seat and mesh back for comfort. Where it misses the mark though is in the construction of the seat itself. First, there’s a protruding seam right where the user’s mid-back rests. This is where the mesh window is stitched into the back of the chair. In cooler temps where thicker layers are being worn, this isn’t a big deal, but in warmer weather where just a T-shirt or even no shirt is being worn this seam becomes an uncomfortable distraction. The other major discomfort comes from the vertical support of the frame below and outside of the knees. There’s an unnatural rise where the vertical frame tubes come up from the feet of the chair to set up the armrests. This pushes your legs together at your knees where the center of the leading edge dips between these high points, much like a hammock. Finally the shape of the chair from the seat to the backrest forces the user into a slouch that takes its toll over time. One nice comfort feature is the adjustable armrests to suit users of different torso/arm lengths.

Craftsmanship
The Mammoth is well built with 600 denier polyester fabric with UV protection, reinforced with stitching onto a lightweight yet sturdy aluminum frame. The fabric held up to our testing and the stitching is holding nicely as well. The large feet, plastic joints, and aluminum frame have also been holding up to our extensive testing period, relieving any concern for this chair being made from aluminum instead of steel like most of the other chairs in this test. The carry bag is also made of durable 600 denier fabric. The carry bag’s double ended zipper is a good size but looks to be a generic zipper brand and not a trusted brand, like YKK.

Features
There are a few great features about the Mammoth. The stand-out feature is the integrated insulated storage bag (soft cooler) hanging from the left armrest. This bag is big enough to hold a few cans of drinks and ice to keep them cold for extended periods. The drink holder on the other armrest is also insulated to keep your drink cold while you’re drinking it. It’s also big enough to take a can or standard bottle with a coozy for added cold retention. Another great feature is the large foot base to prevent the chair from sinking into softer ground or sand. The Mammoth also has a side pocket divided into two skinny compartments well suited for a small book, pens, glasses, etc. And, as mentioned earlier, it has adjustable armrests.

Versatility
The big feet of the Mammoth makes it at home on soft and hard ground, the padded seat is great for cold environments, the mesh back is good for warm weather, and the insulated storage bag can be used to keep items cold or warm.