We loved the original Sun Mountain Zero-G when it was released in 2010, and continue to be big fans of the 2015 version, now dubbed the Sun Mountain Three 5 Zero-G. Based on Sun Mountain’s popular Three 5 series, the bag itself is functional, lightweight, and provides a reasonable amount of storage. The differentiator is still the innovative hip belt, which redistributes the weight of the bag from your shoulders to your hips. This also helps protect your lower back, as the weight of the bag won’t suddenly lurch to one side when you turn or lean.
The caveats are that it’s not cheap (with an MSRP of $219.99), and sometimes the legs don’t pop out as far as we’d like, requiring a nudge from a foot to get them to fully extend. But the increased comfort from the hip belt make this almost a “must have” for anyone who regularly walks the course. The Sun Mountain Three 5 Zero-G is still one of our favorites.

SCORE
93
GRADE
A-
Club Storage
90
Pockets/Storage
84
Carrying Impressions
96
Rain Hood
93
Cost/Value
96

Retail price: $219.99
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The Sun Mountain Three 5 Zero-G has a 9″ 4-way top, with each of the 4 club storage areas partitioned off by full-length dividers. Another couple of storage partitions would have been helpful, as clubs had a tendency to group together and create a logjam down by the grips. The top is flared outward to make it slightly easier to pull clubs out of the bag.
There are seven total pockets – seven zippered pockets and one open beverage sleeve. It’s a lot of different places to squirrel away your goods, and the tradeoff is the additional weight you’ll lug around.

Sun Mountain Three 5 Zero-G 2015

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The right side of the Sun Mountain Three 5 Zero-G also features an adjustable umbrella strap and a nylon loop for attaching a towel, laser rangefinder and/or GPS device.
The belt makes the Zero-G one of the best carry bags for those who regularly walk the course:

The rain hood of the Zero-G (Sun Mountain calls it a “Dry Hood” is well designed for quick deployment. Four buttons go into strategically placed snaps, with a tab that slips through the handle at the top of the bag and then Velcros into place. It took less than a minute and a half to get the rain hood secured despite not having bothered to read the instructions (and putting the wrong side on first). The hood is coated with Teflon, which is supposed to repel water and stains.
Other than the belt, which draws some odd glances now and then, the Zero-G doesn’t really attract too much attention for its looks. It comes in four different color combinations: White/Grey/Orange; Cobalt (blue)/Black; Black/Red/Gunmetal (gray); and Gunmetal(gray)/Black/Citron (yellow).
At a retail price of nearly $220, the Sun Mountain Three 5 Zero-G is one of the most expensive bags that we’ve tested. While the storage options are relatively simple, the carrying belt elevates the Zero-G to the next level. The belt may not be for everyone, but it is a differentiator that for regular walkers is well worth the premium.
Retail price: $219.99
Amazon.com: Check price now
Golfsmith: Check price now