This new version of the Helium, released only this year, comes in 14% lighter than the previous generation, and from what we can see there’s been no downgrade in performance either. There are two options for sealing the bivvy: you can either zip up the mesh panel or you can pin the mesh panel up with a toggle and zip the whole thing closed. Unlike many other bivvy bags, it doesn’t taper at the foot end, so it’s good for those who don’t like the feeling of being in a mummy bag. It also has a reinforced brow, to help keep the bivvy off your face, which makes things so much more comfortable on a wet night. According to North Face, the DryWall single skin also ‘provides unparalled single-wall breathability’. At 420g, the Assault Bivy is not the lightest, and for some it might seem just too big. But, if you’re after a top quality, waterproof bivvy bag with extra space for your boots and bag, then look no further. The material the product is made from is often a sign of the quality for shelters & bivis. Take a look at the product details over at Cotswold Outdoor to get a feel for this.

Another factor that can be a great indication of product quality is the brand. Brands like Rab are of course extremely well known, especially for shelters & bivis. It’s no-frills, but no-frills is sometimes fine if the bag is light and protective, and that’s certainly the case here. Top: 40D ripstop nylon with PU coating (108gsm) with fluorocarbon-free DWR HH: 10000mm MVTR: 10000g/m2/24 hrs Fancy it? If you do, then you’re in the right place. We’ve done the hard work for you, putting several products – ranging in design, style, size and price – through their paces on wild camping trips to Scotland, the Brecon Beacons and the Lake District. So, whether you’re looking to venture into bivvying for the first time or if you’re a seasoned pro at sleeping under the stars, there’s something for everyone here. The Best Bivy Bags Tested by Our TeamThat got us thinking though, that we’re looking at every possible item from Rab so it would be good to narrow our search down even further and only look at Rab branded products within the shelters & bivis category. The cost of Rab shelters & bivis And why on earth would you use one when tents exist? Well, such an approach – with your head open to the elements – offers an even more intimate interaction with the wild. The sounds of night creatures are unmuffled, the stars dazzle above you, and your senses are highly attuned to every raindrop and every gust of wind. The Storm Bivi is constructed with a breathable 40D ripstop nylon on top and 70D nylon at the base, with a PU coating for rugged, waterproof protection. The fabric is treated with a fluorocarbon free durable water repellent (DWR) which helps to create extra resistance against elements like rain and wind, whilst being a more sustainable choice than your average bivi. Fluorocarbon free finishes are much more eco friendly as they don't use any chemicals that would cause harm to the environment. layer Ripstop nylon upper / 10,000 mm hydrostatic head / 10,000/m2 breathability / width: Shoulders – 80 cm; Foot – 50 cm Ripstop outer with 5000mm hydrostatic head / 5000g/m2 breathability / 70D Ripstop floor / 8.5mm aluminium poles / supplied with ultralight alloy pegs.

The Rab Storm Bivi is a lightweight, breathable, waterproof bivi designed to wrap around a sleeping bag, offering optimised protection from the elements. This made it into our Outdoor 100 for 2022, with our Test Team all impressed by its superb fabric and lightweight qualities.

Conclusion

There’s so much information available online when we’re shopping now, that it’s easy to find lots of detail about products like Rab Storm Bivi. This is of course really helpful, but there’s almost too much information available, so it’s important to know exactly what you’re looking for.

Bluesign approved Pertex Shield Diamond Fuse 2.5L / 100% Nylon, 30D ripstop upper / 100% nylon, 40D with TPU lamination floor / bluesign approved100% polyester mesh / single-pole system / reflective Logo and Trims / two stake loops / one guy line loop / high volume toe end / clamshell opening / two Internal fly fasteners. When buying shelters & bivis, the quality of the product is going to be one of the factors that you really scrutinise before you commit to buying. Price – as you’d expect the price of a product can be an instantly recognisable factor on what sort of quality you can expect. Whoever came up with the phrase “you get what you pay for” pretty much hit the nail on the head. Whilst it’s not always the case and there are many bargains to be had, you can as a general rule, expect the higher priced products to offer better quality than a the cheapest option. We’ll dive into the price of Rab Storm Bivi in more detail in a moment. It’s certainly a distinctive product due to the high, clam-shaped opening at its head, which utilises a single arcing pole to create a high (for a bivvy bag) ceiling. This makes for easy entry and exit and gives the user plenty of head space – after all, no one wants a claustrophobic bivvying experience. This thing’s made from Pertex’s impressive Diamond Fuse fabric, a 2.5-layer ripstop nylon with specially shaped yarns that are intricately woven together to create a robust, abrasion resistant and highly durable fabric – one that’s both waterproof and highly breathable too.

Top 11 Product Ratings

It has an open-face style with a snap opening and stiffened peak. This is in contrast to the zipped face designs commonly found on most bivvy bags and Rab champion it as being less constricting. An integrated rain gutter manages precipitation effectively. A robust and protective, breathable bivi, providing minimalist refuge from any storm. Featuring waterproof fabric and a spacious design to accommodate bulky clothing or large sleeping bags, the Storm Bivi is designed for use in all conditions.