Introduction
The Nemo Chipper (MSRP: $19.95, 5.6 oz / 160 g) is a closed-cell foam (CCF) sit pad made from scraps created in the production of the Nemo Switchback and other closed-cell foam sleeping pads.

The idea of upcycling materials (especially petroleum-based materials) in the production of a new outdoor product caught my attention. A prevailing message for consuming in an environmentally friendly way is to keep things out of landfills by reusing or repurposing them. In that light, if you are in the market for a sit pad (I myself am a recent convert) then an environmentally-conscious action would be to scrounge around until you find an old closed-cell foam sleeping pad and cut it down to size. Not only does this reduce the amount of busted-up CCF sleeping pads in landfills, but it also avoids the use of new packaging materials.
But if you’ve been a long-time inflatable pad user or are new to backpacking, you may not have access to an old CCF pad. In that case, and assuming Nemo’s marketing materials can be believed, it’s worth looking at the Nemo Chipper over something like the Therm-a-Rest Z Seat.
Highlights
- MSRP $19.95.
- Weight: 5.6 oz (160 g) (some minor variation in claimed vs. measured weight due to the different densities of foam used in this product).
- Unfolded dimensions: 13 x 17 x 1 in (32 x 42 x 2 cm).
- Folded dimensions: 12.5 x 4.0 x 2.5 in (32 x 10.5 x 5.7 cm).
- R-value: 2
- Uses the Nemo Switchback’s nesting pattern.
First Impressions
In the first year of producing the Nemo Chipper, the company projects that they will utilize 8.8 tons of scrap foam that would have otherwise headed towards an incinerator or landfill as a result of making the Nemo Switchback. As I said in the introduction, I can get behind that, even if the most environmentally friendly way to source a sit pad is by using a second-hand sleeping pad that’s been cut to your needs.

The blend of foam Nemo uses in the pad is slightly more firm than that used in the Switchback. That makes it an ideal sit pad because rocks and roots are less likely to poke your booty through the foam. But my favorite thing is the sizing – in its halfway folded state, the Nemo Chipper slips precisely into my size small Hyperlight Mountain Gear Stuff Sack Pillow.

There’s no telling if this sizing is intentional or not, but I certainly appreciated it when I realized a mass-produced sit pad could slot exactly into my pillow system. (I use the sit pad to create a little rigidity beneath whatever puffy or clothing layer I’m using as the bulk of my padding, a technique I stole from Ryan Jordan.)

As a final little bonus, each Nemo Switchback is unique because of the random distribution of foam types throughout the pad.

The Nemo Switchback is about four bucks more expensive and 3.6 oz (102 g) heavier than the ubiquitous Therm-a-Rest Z-Seat, but it is slightly thicker and (I think) denser, though in the interest of full disclosure I’ll admit that it’s been a while since I sat on a Z-Seat.

The Takeaway
I used the Nemo Switchback for the bulk of the 2020 backpacking season and appreciated its density when used as a seat and its dimensions when used as a part of my pillow system. If you absolutely have to buy a new sit pad, the upcycled nature of this product stands out from competitors – if you don’t have a problem with the (slight) expense and the 3.6 oz (102 g) weight penalty.

Where to Buy
- Find the Nemo Chipper here.
Related Content
- Read Andrew’s review of the Nemo Switchback CCF Sleeping Pad.
- On the search for the perfect pillow? Check out this MYOG pillow from our forums or add your own stuffing to the Hyperlite Mountain Gear Stuff Sack Pillow.

Discussion
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Companion forum thread to: Nemo Chipper Review
The Nemo Chipper (MSRP: $19.95, 5.6 oz / 160 g) is a closed-cell foam sit pad made from scraps created in the production of the Nemo Switchback and other closed-cell foam sleeping pads.
I like the random color configurations. Art nouveau. I cut my 1/2″ thick Plastazote pad down to 72″, which gave me a 1.10 oz 9″x20″ piece to use as a sit pad. Had the Thermarest Zseat before that. Was a good pad
13″ x 17″ and it weighs 5.6 oz? What am I missing here? My 13″ x 18″ chunk of blue mat from Walmart is 1.9 oz. Are they blending lead into the multicolored mix?
Probably the mix of higher density foams used in this pad. Blue walmart foam is pretty low density, so a lighter weight is to be expected.
Well, yeah, but surely it can be done better than that. Per square inch, that pad is 3.12 times as heavy as a cheap-o blue pad. A standard 20″ x 72″ pad would weigh 36.49 oz. Reuse and recycling are great, but…ouch!
maybe they found the heavier density to be more robust for their target demographic. who knows.
A brand new Therm-a-Rest Z-seat is 2 ounces and 13 x 16 inches. And it includes a free, built-in bungie closure!
But it’s not recycled or reused. Sometimes we need to pay ounces or grams for our sins.
I’m working through a lifetime supply of scrap Z-Lite and Thinlight sections that are much lighter than the Chipper but still big enough for my backside.
— Rex
And you can go even lighter but not recycled or reused: the Litesmith Folding Sit Pad is 1 ounce and 15.5 x 10.75 inches (again, big enough for my backside), plus it’s available in a rainbow of solid colors.
— Rex
I love upcycling backpacking gear–it’s my favorite way to MYOG.
While it’s much better to upcycle production waste than to throw it away, I wonder what Nemo could do to change the manufacturing process of their pads to minimize or eliminate the production of cut-off material in the first place. I would love to see them take back used CCF pads at the end of their lives for upcycling into new pads.
Several years ago I made a Ray-Way 2 person quilt, and the instructions had you baste together two pieces of insulation to minimize waste. My first reaction was disappointment that I would have a patched-together quilt from day one, but that turned into appreciation for the resourcefulness of the design over time as the insulation never separated. Plus, I learned a new skill.
Great review! What is the pack in the photos?
I totally agree. It looks great, glad to see Nemo is doing this. Sometimes the mindset shift in upcycling that is a bigger net gain than the physical savings itself.
Thanks for the review. Will it fit in the bladder sleeve of an HMG 3400?
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