Thu. May 23rd, 2019

Western Mountaineering NanoLite Quilt Evaluation

Final summer season, Western Mountaineering lastly launched two quilts into their huge line of sleeping luggage, each made within the USA utilizing a few of highest high quality supplies accessible. We have been one of many first to get our palms on the 11oz. NanoLite quilt for some summer season and fall bikepacking. Right here’s a primary look, ideas on this impressively light-weight quilt, and a comparability of different light-weight quilts available on the market…

compose Miles Arbour
time Mar 13, 2019
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Western Mountaineering has at all times set a excessive commonplace in the case of high quality gear. Though there are just a few different revered manufacturers on the market making nice sleeping luggage and quilts, I’ve at all times been excited to see the Western Mountaineering luggage in Canadian gear retailers like Mountain Tools Co-op, bringing a available premium choice to the common Joe.

I’ve used a number of completely different fashions now, from the 10°F (-12°C) rated VersaLite to their 32°F (zero°C) SummerLite, and have at all times had a constructive expertise. All of their luggage are made in San Jose, California, and are sometimes signed by the one that made them. Plus, because of their distinctive staffing mannequin, you may be sure the individuals who made your sleeping bag or quilt are one of the best at what they do. For instance, the particular person stitching the baffles and footbox on the NanoLite Quilt does solely that, and received’t all of the sudden be in command of coping with zippers or yokes. The top result’s a high-quality sleeping bag produced from a number of the greatest supplies on the market, and one which’s accessible from retailers worldwide.

Western Mountaineering NanoLite Quilt Review

Western Mountaineering NanoLite Quilt Review
Western Mountaineering NanoLite Quilt Review

The NanoLite and AstraLite Quilts have been launched in response to suggestions from clients and sellers over the previous couple of years. As per Western Mountaineering’s traditional method, the baggage are produced from a proprietary 7-denier shell material and 10-denier liner. Pair these extraordinarily light-weight materials with their 850+ fill energy down, and also you’ve bought one of many lightest summer season quilts accessible.

Flat elastic loops on the underside of the quilts connect to any sort of sleeping pad, and an extra elastic lace adjusts to the pad’s width to assist remove drafts. Each use small twine locks to assist accommodate completely different pads (although I left issues pretty free to supply extra room to maneuver round contained in the quilt). There’s additionally a single button snap on the again to assist preserve issues tight across the draft yoke. A sewn by foot field and insulated yoke with elastic closure additionally assist to maintain the heat in the place it belongs. The AstraLite is rated for 26°F (-Three°C) and the NanoLite is rated for 38°F (Three°C). Each quilts are supplied in a 5’eight” mannequin for these 6’ and shorter, and a 6’four” mannequin for these taller than 6’. I examined a 5’eight” NanoLite.

Western Mountaineering NanoLite Quilt Review
Western Mountaineering NanoLite Quilt Review

I’m a agency believer in investing in high-quality tenting gear for bikepacking the place doable. Bikepacking on singletrack-heavy routes is way more satisfying when the bike you’re using handles like a mountain bike. Let the rear finish skid round corners, catch a little bit of air, and get a bit of playful with issues. Contemplating the burden of a metal hardtail with entrance suspension, huge tires, and a dropper submit, I feel it’s value spending a bit of cash on light-weight gear, particularly my sleep system.

I used to be in a position to snag the ultralight MSR Carbon Reflex 1 tent, which I reviewed right here, plus Klymit’s new V Ultralite SL sleeping pad, and after listening to about Western Mountaineering’s grand entrance into the world of quilts, I knew I needed to get my palms on one to finish my sleep system. Beside the potential weight financial savings, what additionally drew me to a quilt was the elevated inner area and the power to toss and switch with out problem, one thing that usually annoys me with light-weight, tapered sleeping luggage.

The NanoLite, being the lighter of the 2 quilts, affords a down fill weight of 6.5 oz (5’eight” mannequin) and seven.25 oz (6’four″ mannequin), with a complete weight of 11 ozor 12.5 oz, relying on the scale. The interior shoulder width of 68” and hip space of 38” supply simply sufficient room inside with out feeling cosy wherever alongside my physique. Plus, the helpful adjustable elastic loops on the underside imply that the general measurement of the quilt may be fantastic tuned to match the skin temperature or desired really feel. In comparison with the Sea To Summit Spark SP I, an ultralight sleeping bag that I reviewed final summer season, the NanoLite affords way more area round my shoulders, regardless that I probably ought to have opted for the longer model to offer my ft a bit of extra room. For anybody teetering round 6’, I’d suggest the longer 6’four” model. It received’t simply be extra comfy, it’ll additionally enhance the usable temperature vary by providing extra loft in key components of the quilt.

Western Mountaineering NanoLite Quilt Review

Whereas bikepacking on the Oregon Timber Path final summer season, I didn’t encounter many nights colder than 45°F (7°C), so the NanoLite was greater than sufficient to maintain me comfy. Most nights I might simply lie on prime till issues cooled down a bit, ultimately retreating contained in the consolation of the quilt. Any time the temperature fell beneath 23°F (-5°C), like throughout an evening scouting the Vapor Path in Colorado this fall, I used to be comfortable to have some merino lengthy johns, thick socks, a toque, and an insulated jacket to placed on. These form of situations are already pushing absolutely the decrease restrict of the bag, however with some foresight, I’m positive I may sleep comfortably in even colder temperatures.

I appreciated not having any zippers to fiddle with, and though quilts require a little bit of setup earlier than entering into mattress, it’s simple sufficient to slide the elastic straps over your sleeping pad when setting issues up for the evening. For my part, having an insulated yoke and footbox makes an enormous distinction in the case of consolation and heat, and these options additionally set the Western Mountaineering NanoLite other than different light-weight quilts presently accessible. It’s the lightest and most packable sleep system I’ve ever owned, packing all the way down to the scale of a small melon, making it best for ultralight bikepacking journeys or endurance-style occasions.

Western Mountaineering NanoLite Quilt Review
Western Mountaineering NanoLite Quilt Review

Western Mountaineering NanoLite Quilt Review

If I needed to get actually choosy, I assume getting out and in of the NanoLite quilt may be barely awkward. Since there are not any zippers or fast releases for the elastic straps like on the Katabatic Gear and Enlightened Tools quilts, you’re just about pressured to slip out backwards. Relying on what sort of shelter you’re utilizing, and if there are doorways, this might make for tough exit when nature calls. With this in thoughts, the Western Mountaineering quilts could also be greatest fitted to tents with rear entries, tarp setups, or for cowboy tenting.

One different factor I observed was the decrease than common fill weight of the NanoLite, at 6.50oz. It appears that evidently different comparable cottage-brand luggage supply a bit extra fill weight, nearer to eight – 9.5 oz, for normal size ~40°F rated quilts. The whole weight of the quilt and temperature score ought to be indicators that the NanoLite isn’t as versatile as different choices on the market. For these anticipating barely cooler temperatures, try the AstraLite.

Ultralight Quilts In contrast (35-40°F)

Right here’s a fast comparability of seven bikepacking-friendly quilts that each one fall inside an analogous temperature vary of 35°F to 40°F (1.6°C – four.four°C). It ought to be famous that that is usually thought-about a ‘quick and lightweight’ vary, and quilts rated for 30°F present extra versatility. Fortunately, lots of the choices listed beneath are additionally supplied in hotter variations. Plus, just a few producers present many customizable options, together with size, width, and the fill energy of the down used. For the sake of consistency, I’ve gathered the specs beneath primarily based on probably the most commonplace choices accessible for customers as much as 6’ tall. Costs will fluctuate relying on which specs are chosen.


Whole Weight grams / ounces

Fill Weight grams / ounces

Temp Ranking °F/°C


Western Mountaineering NanoLite





Enlightened Tools Enigma





Enlightened Tools Revelation





Katabatic Chisos





Zpacks Solo Quilt





Nunatak Tools Arc UL





Katabatic Gear Flex





Western Mountaineering NanoLite Quilt Review


One of many lightest quilts accessible at 11 – 12.5 oz.
Insulated yoke and footbox preserve issues comfy and heat.
38°F temperature score is pretty versatile, making it best for spring, summer season, and fall journeys.
Made in USA, utilizing the very best high quality materials and accountable down sourcing.


No zippers or quick-release straps means there is just one means out and in of the quilt.
NanoLite solely has 6.5oz of fill, in comparison with eight – 9.5oz in related quilts.
You will have one other bag or quilt for chilly climate journeys.

Mannequin Examined Western Mountaineering NanoLite Quilt (5’eight″)
Weight 311 grams (11 oz)
Worth $330
Producer’s Particulars


In relation to general high quality, Western Mountaineering is difficult to beat. Unbeknownst to most, they’re a small firm that takes the supplies used, workmanship, and the weight-to-warmth ratio of their merchandise very severely. A number of Western Mountaineering followers shall be stoked to lastly see an ultralight quilt from the corporate, and as anticipated, the NanoLite is probably one of many lightest quilts presently accessible. When in comparison with different ultralight down quilts, the fill weight is on the decrease finish of the spectrum, which is probably going why this off-the-shelf quilt is so rattling mild. The NanoLite is assured to considerably cut back your sleep system’s whole measurement and weight, and it’ll accomplish that with out sacrificing any consolation on milder nights beneath the celebrities.

Subsequent time, I might seize the longer 6’four″ bag to unencumber some area round my ft, and if I hadn’t spent my summer season using in principally hotter climates, the AstraLite Quilt would supply a bit of extra versatility. Both means, I totally count on to proceed utilizing and having fun with the NanoLite Quilt this spring and summer season as effectively.

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