What They Have in Common
Both are Sun Mountain cart bags with 14-way tops and full-length dividers, a single-strap system, an insulated pocket, and a velour-lined rangefinder pocket. Neither has stand legs — these bags live on a cart or in a cart bag cradle. Same brand, same basic architecture. The differences are in the details, and the details matter quite a bit here.
Where They Differ
Weather Protection
This is the clearest split. The H2NO C-130 is built from H2NO fabric with a waterproof PU coating and seam-sealed zippers, and it ships with a matching rain hood. Sun Mountain makes no waterproof claim for the standard C-130 — their own product lineup separates the two, with H2NO in the name marking the waterproof version. Sun Mountain describes the H2NO's zippers as water-resistant rather than waterproof, which is worth knowing, but the fabric and seams are the real story in a downpour.
If your home course gets afternoon storms or you play in the Pacific Northwest or the UK, the H2NO is doing real work. On a dry Arizona track, it's irrelevant.
Weight
The H2NO C-130 lists at 6 lbs empty. The standard C-130 lists at 7.6 lbs. That 1.6-pound gap doesn't mean much once both bags are strapped to your cart — a cart bag's weight is mostly the caddie's problem, and cart bags don't have caddies. Where it shows up is lifting the bag in and out of your car, loading it onto the cart at the bag drop, and stacking it after a round. Over a season, that adds up. Call it a minor point, but the H2NO wins it.
Storage and Pockets
The standard C-130 has 11 pockets and 43.7 L of total capacity, including two apparel compartments. The H2NO has 9 pockets and 39.8 L. That's a real difference if you're the golfer who carries a rain jacket, a sweater, a pair of spare shoes, and enough snacks to feed a foursome. Two fewer pockets and about 4 liters less capacity is a trade-off for the waterproofing, not a hidden cost.
Cart Integration
The H2NO C-130 has a cart strap pass-through. Sun Mountain's page for the standard C-130 doesn't confirm one either way. A cart strap pass-through is the difference between threading your strap through a dedicated slot and just cinching it across the bag wherever it lands. On a hilly course where the bag shifts, it matters.
Price
The standard C-130 lists at $325. The H2NO lists at $400. That's a $75 gap at list.
Who Should Buy Which
Get the Sun Mountain H2NO C-130 if:
- You play in variable weather or anywhere that sees real rain — the H2NO fabric and rain hood mean you're not digging a dry-bag cover out of your trunk at the first tee
- You want a confirmed cart strap pass-through
- Shaving 1.6 lbs off your bag drop routine appeals to you
- The $75 premium fits your budget
Get the Sun Mountain C-130 Cart Bag if:
- You play somewhere reliably dry and will genuinely use the extra two pockets and 4 liters of capacity
- You're carrying enough gear — two apparel compartments worth — that the storage difference isn't abstract
- The $75 savings is the deciding factor and weather isn't a concern
The Bottom Line
Both bags share the same 14-way top with full-length dividers, and both are squarely in Sun Mountain's cart bag lineup. But the H2NO C-130 is lighter, weather-ready out of the box, includes a rain hood, and has a confirmed cart strap pass-through. The standard C-130 gives you more pockets and a lower price — if that trade-off fits your conditions and your packing habits, it's a reasonable bag. For everyone else, the $75 upcharge buys something you'll actually use.
Get the Sun Mountain H2NO C-130 Cart Bag.