Bottom Line
The Big Agnes Zoom UL balances low weight with useful three-season warmth and a roomy rectangular shape. It earns a place in our guide to the best backpacking sleeping pads as a quiet, 14-ounce three-season option with a useful balance of warmth, room, and packability. Its 3.25-inch center and 3.5-inch side rails provide enough depth for side sleepers while helping keep you centered through the night.
We used the Zoom UL for about 300 miles and 20 nights on the Arizona Trail, where it delivered dependable comfort and insulation through chilly desert nights without adding much pack weight. The quilted 30D top is quiet, the rectangular shape gives you more usable space than a narrow mummy pad, and the 4.3 R-value is well suited to typical three-season trips.
The compromises are mostly about convenience. The pump sack is less efficient than our favorite inflation systems, and deflation requires more squeezing because the pad lacks a dedicated dump valve. Its durability is solid for a lightweight inflatable, but it still needs more care than foam.
For backpackers who value low weight, three-season warmth, and a broader sleeping surface, the Zoom UL is a strong option.
How We Tested
We tested the Big Agnes Zoom UL for about 300 miles and 20 nights on the Arizona Trail. We evaluated the Regular 20 x 72-inch rectangular version for comfort, weight, packability, durability, warmth, inflation, deflation, and valve performance.
Our current category data records a 14-ounce CleverHiker measured weight for the tested pad.
Quick Specs
- Best for: Lightweight three-season backpacking, side sleepers, long-distance hiking
- Tested size: Regular rectangular
- Tested dimensions: 72 x 20 x 3.25 in., manufacturer listed
- Fabric: Recycled nylon ripstop with aviation-grade TPU lamination
- Included: Pump sack, storage sack, replacement valve seal, 3M repair patches
Big Agnes Zoom UL
Quiet Pad with Excellent Warmth-to-Weight Ratio
CleverHiker Rating: 4.3/5.0
Price: $200
Weight: 14 oz., CleverHiker measured
R-Value: 4.3
Thickness: 3.25 in. center / 3.5 in. side rails
Pros
- Lightweight for a rectangular insulated pad
- Good three-season warmth
- Raised side rails
- Quiet sleeping surface
- Roomy rectangular shape
- Solid durability for the weight
Cons
- Pump sack is less efficient than our favorites
- No dedicated dump valve
- Deflation takes extra squeezing
- Still requires normal inflatable-pad care
Comfort
The Zoom UL is comfortable for a lightweight inflatable, especially for hikers who want more room than a narrow mummy pad provides. The center is 3.25 inches thick, while the outer chambers rise to 3.5 inches and help keep sleepers from drifting off the pad.
That depth is enough to keep hips and shoulders off the ground for most side sleepers, and the rectangular footprint gives you more usable space when changing positions.
The quilted surface is relatively quiet and soft compared with many slick ultralight pads. Firmness is also easy to fine-tune with the small adjustment button built into the valve.
The main comfort caveat is the surface texture. Some testers found the quilted pattern slightly bumpy, and hikers who prefer a flatter, firmer sleep surface may like other designs better.
Comfort Score: 4.1 / 5.0
Weight & Packability
At 14 ounces in our tested configuration, the Zoom UL is impressively light for a rectangular insulated pad with this much depth and usable space.
The low weight is especially appealing to long-distance hikers who want more comfort than a minimalist mummy pad without jumping into the heavier comfort-first end of the category.
Our category data lists a packed size around 4 by 8 inches. That is compact enough to disappear easily inside most backpacking packs.
The tradeoff is that Big Agnes gets much of the weight savings from lightweight fabrics and a relatively simple valve system, so the Zoom still needs thoughtful handling in camp.
Weight Score: 4.5 / 5.0
Durability
The Zoom UL offers respectable durability for a lightweight inflatable. Its 30D top and tougher bottom fabric provide more confidence than the thinnest ultralight pads, and Big Agnes uses aviation-grade TPU lamination around the welds and valve.
Our long-distance testing did not raise major durability concerns, and the pad held up well through repeated use on the Arizona Trail.
It is still an inflatable, so sharp rocks, thorns, and sticks can cause problems if campsites are not cleared first. Big Agnes includes repair patches and a replacement valve seal for field fixes.
Within our current lineup, the Zoom lands in the middle rather than at the top for toughness, which matches its balance of low weight and durability.
Durability Score: 4.3 / 5.0
Warmth
With an R-value of 4.3, the Zoom UL provides dependable three-season insulation for spring, summer, fall, and many cooler shoulder-season trips.
We used the pad through chilly desert nights on the Arizona Trail and found it warm enough for the conditions we encountered. The reflective insulation and thick air chambers provide good warmth without pushing weight much above a pound.
We would not choose the Zoom as a dedicated winter pad. Its role is lightweight three-season use, not sustained sleeping on snow or frozen ground.
For backpackers trying to keep weight low while still getting meaningful insulation, the Zoom offers a strong warmth-to-weight balance.
Warmth Score: 4.4 / 5.0
Ease of Setup
The Zoom UL is straightforward to inflate, but it is not one of the easiest pads in our lineup to live with day after day.
The included pump sack attaches securely enough and generally takes several fills to inflate the pad. The valve also makes micro-adjustments easy once you are lying down.
The weak point is breakdown. Because there is no separate dump valve, fully removing the air takes more squeezing and rolling than it does with pads that open wide for deflation.
The pump sack itself is also more single-purpose and less efficient than our favorite designs, so the whole setup feels a little less polished than the category leaders.
Ease of Setup Score: 4.2 / 5.0
Should You Buy the Big Agnes Zoom UL?
The Zoom UL makes the most sense for backpackers who want a light, rectangular three-season pad with useful warmth and enough depth for side sleeping.
It is a particularly good fit for long-distance hikers who appreciate the 14-ounce weight but do not want the narrower feel of a highly tapered mummy pad.
We would choose something else if effortless setup and breakdown are major priorities, or if winter insulation is required.
If low weight, a roomy sleep surface, and three-season versatility matter most, the Zoom UL remains a compelling option.
What Other Backpacking Pads Should You Consider?
NEMO Tensor All-Season: The Tensor All-Season is our favorite overall pad and is warmer, slightly more comfortable in our testing, and easier to inflate and fully deflate. Choose the Zoom when its lighter rectangular design better fits your priorities; choose the Tensor for the stronger all-around performance.
Therm-a-Rest NeoAir XLite NXT: The XLite NXT is another lightweight three-season leader with excellent weight efficiency and strong durability. It is narrower and firmer than the Zoom, but it makes more sense for hikers who prioritize minimum weight over a roomy rectangular feel.
Big Agnes Rapide SL Insulated: The Rapide SL is heavier but more comfort-focused. Its softer, thicker sleep surface and dump valve make it a better fit for hikers who value cushioning and convenience more than shaving ounces.
More Big Agnes Zoom UL Photos
While the Zoom UL is light and compact, it doesn’t skimp on durability and handles rugged conditions with ease. – Photo Credit: Ian Krammer (CleverHiker.com)
Save your breath – the Zoom UL’s large pump sack makes it easy and fast to inflate your sleeping pad. – Photo Credit: Ian Krammer (CleverHiker.com)
At only 14 ounces, the Big Agnes Zoom UL is remarkably lightweight, making it an excellent choice for backpackers. – Photo Credit: Ian Krammer (CleverHiker.com)
The Big Agnes Zoom UL holds up well to regular use thanks to its sturdy build, providing long-lasting performance on the trail. – Photo Credit: Ian Krammer (CleverHiker.com)
The Big Agnes Zoom UL offers reliable warmth for most three-season camping trips. – Photo Credit: Ian Krammer (CleverHiker.com)
Packing the BA Zoom UL isn’t the fastest, but its a good way to slowly get moving, – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
Inflating takes about 5 pump sacks worth of air. – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
Customize your firmness for a great night’s sleep with the press of a button. – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
Big Agnes uses a durable, yet soft and quiet upper fabric. – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
Side rails help keep your body in place if you are on a slight slope. – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
The thick pad and ample r-value just about guanatees a good sleep. – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
Big agnes uses quality fabrics so you don’t have to worry as much about having to get a new pad every few seasons. – PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
Big comfort without hogging your pack space or the tent. -PHOTO CREDIT: HEATHER ELDRIDGE (CLEVERHIKER.COM)
