First Look: The 3.4-Pound Sun Mountain Eclipse E-1.5 Golf Bag

There’s something to be said for golfers who still prefer to walk the course and carry their clubs. Sun Mountain’s new Eclipse E-1.5 is a tip of the cap to those players.

Weighting just 3.4 pounds, the Eclipse E-1.5 packs serious storage and convenience into a featherweight frame.

Here’s what makes it stand out.

Despite its minimalist weight, the Eclipse E-1.5 is a full feature golf bag, and includes:

• 4-way top that fits all 14 clubs
• Dual strap (single strap accessory available)
• Durable, water-resistant outer
• 7 pockets include apparel pocket, valuables pocket, and magnetic-closure rangefinder pocket
• Matching rainhood

For golfers who walk, the E-1.5 is built to make the trek easier. Each of the seven pockets fills a need. From the velour-lined valuables pocket and a magnetic rangefinder slot to a full-length apparel pocket and beverage sleeve, the E-1.5 covers all the bases.

The Cordura Nylon Ripstop fabric – essentially windbreaker material – helps keep weight down while standing up to wear and tear. At 3.4 pounds, it’s up there with the lightest full-feature golf bags we’ve seen in 2025.

The top has four dividers and provides room for a full set of 14 clubs.

The E-1.5 is not just easy to carry around the course. Two handles at the top, plus another at the bottom, make it easy to load in and out of a trunk.

Sun Mountain makes the Eclipse E-1.5 in five color options, including red, green, gray, navy and black. Each has black trim and accents for an understated look.

As a lightweight and practical bag, the Eclipse E-1.5 is made for walking golfers.

Players who carry their clubs will appreciate the lighter load and the padded area where the bag rests on your back.

The durable and water-resistant shell handles all the abuse walking golfers put their bags through.

For players who sometimes use a cart, or a push cart, and prefer a slightly stouter bag, the Eclipse line also features the Eclipse E-2.5 (eight pockets, 4.4 lbs) and the Eclipse E-3.5 (11 pockets, 4.85 lbs).

We haven’t tested the Eclipse E-1.5 yet, but Sun Mountain’s reputation for strong and convenient golf bags is one of the best in the game. 

For golfers who prioritize a light, efficient walk and dependable construction over bargain pricing, the E-1.5 should be near the top of the list.

The minimalist look, comprised of small logos and windbreaker-type fabric, appeals more to practical players than those who prefer bold style.

Most ultra-light bags come with tradeoffs. Golfers shopping in this category often must accept fewer pockets, less-than-14-club capacity, or convenience compromises. However, the Eclipse E-1.5 seems to deliver convenience without sacrifice.