Nemo is a brand that doesn’t bring anything to market unless it’s an improvement on what’s already out there. In the case of its newest synthetic Forte , it took its original design and gave it a sustainable overhaul, crafting a cozy cocoon of recycled materials that's also 100% recyclable at the end of its life too. The launch officially kicked off the brand’s collection in 2023.

So, keeping in step with the likes of and , Nemo has got its eye on the full lifespan of its products. The Forte Endless Promise bags are constructed from a single type of material, which makes it much easier to recycle and goes a long way to keeping waste out of landfills. I was stoked to test this environmentally friendly, in the backcountry to see if its performance is as strong as its green credentials.

When I first clocked the Forte in its compressible stuff sack, it was apparent that it wasn’t the most packable sleeping bag in town. If you’re looking for an ultralight, uber-packable sleeping bag, ideal for long, multi-day backcountry expeditions or summer thru hikes, this isn’t the bag for you. However, this is hardly surprising given its modest price point and the fact it features synthetic insulation, rather than down.

It weighs 1.64kg / 3lb 10oz, which is on the heavier side of things, and it doesn’t pack down as small as the best in the business. If ultralight kit is your thing, you're set on a Nemo bag and you've got cash to spare, check out the more expensive .

Neverthele.