Vango Atlas 350 Sleeping Bag

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Vango Atlas 350 Sleeping Bag
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Vango Atlas 350 Sleeping Bag
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  Product Description
The Vango Atlas 350 brings proper three-season performance without the premium price tag. Built around ThermoLock insulation that maintains its loft through countless camping trips, this mummy bag balances warmth retention with packability. The double-layer construction uses Polair fabric on both shell and lining - a 190T polyester that's genuinely machine washable, which matters when you're dealing with condensation from spring mornings or the inevitable festival mud.

What sets this apart from budget bags is the attention to practical details. The shaped hood features an adjustable drawcord that actually seals properly around your face, whilst the two-way zip lets you regulate temperature from either end. Single-layer stitch construction keeps the fill evenly distributed, eliminating those cold spots you often get with cheaper bags. The EN ISO 23537-1:2016 certification means the temperature ratings have been independently tested rather than optimistically estimated. Worth noting that the mummy shape does taper significantly towards the feet, so if you're a restless sleeper who moves around a lot, you might find it restrictive.

The Grade A insulation fill retains warmth even when damp, which proves useful during multi-day trips in typical British weather. Hanging loops make drying straightforward after wet camping sessions, and the stuffsack compresses everything down to a manageable size for rucksack or car boot storage. The woven zip pullers work smoothly and the Insulation Lock S-stitching prevents fibre migration over time. This sleeping bag suits festival-goers, family campers, and anyone starting out with overnight trips who needs reliable gear that won't fail when temperatures drop unexpectedly. The machine washability extends its lifespan considerably compared to bags requiring specialist cleaning.

Vango Atlas 350 Sleeping Bag Features


  • Polair® Shell - A soft touch, durable, 190T polyester fabric that's machine washable for comfort and longevity
  • Polair® Fabric Lining - A super soft and comfortable 190T brushed polyester microfibre lining that's incredibly warm and soft to touch
  • Grade A Insulation Fill – A superior fibre insulation that's durable, warm, lightweight, soft to touch and retains
  • Single-Layer Stitch Construction - Reduces cold spots by ensuring the fill is evenly distributed within the bag
  • ThermoLock Insulation - High loft insulation that retains warmth even when wet
  • Shaped Hood with Drawcord Closure - Reduces heat loss from the head. Drawcord allows adjustment of the hood for controllable heat retention
  • Mummy Shaped Sleeping Bag - Tapers from the shoulders to the foot, reducing pack size and increasing thermal efficiency
  • Two-Way Zip - Can be unzipped from the top or bottom to increase ventilation
  • Hanging Loops - Allows you to easily hang your bag for quick and easy drying
  • Woven Zip Puller - Allows you to quickly and easily move the zip
  • Stuffsack with Drawcord – Allows for easy packing, while minimising pack size for easy transportation
  • Insulation Lock - S-Stitching holds insulating fibre in place for an even distribution across the body
  • EN ISO 23537-1:2016 Certified - Extensively tested to meet industry standard temperature ratings

Specifications
  • Weight : 1.55 kg
  • EN13537 Comfort : 2 °C
  • EN13537 Extreme : -20 °C
  • EN13537 Limit : -3 °C
  • Suggested Usage Max : 20 °C
  • External Chest Width : 80 cm
  • External Foot Width : 50 cm
  • External Length : 210 cm
  • Maximum User Height : 185 cm
  • Internal Chest Width : 78 cm
  • Internal Foot Width : 48 cm
  • Sleeping Bag Shape : Mummy
  • Performance : 3 Season
  • Fill Type : 30% Single Hole siliconised hollow fibre/70% polye
  • TOG Rating : 9.5
  • EAN : 5059474016982
  • Colourway : Excalibur Grey

Frequently Asked Questions


What temperature rating does the Vango Atlas 350 have?
The Atlas 350 is EN ISO 23537-1:2016 certified, which means it has been independently laboratory tested for temperature performance. The 350 designation typically indicates suitability for temperatures down to around 0-5 degrees Celsius comfort rating, making it appropriate for spring, summer and autumn camping in the UK. The testing standard provides three ratings: comfort (temperature at which a standard woman can sleep comfortably), lower limit (temperature at which a standard man can sleep for eight hours without waking), and extreme (survival temperature only). Always check the specific rating label on your bag as these are scientifically measured rather than manufacturer estimates.
Can I wash the Vango Atlas 350 in a domestic washing machine?
Yes, the Atlas 350 is designed to be machine washable, which is relatively unusual for insulated sleeping bags. Use a large capacity front-loading machine on a gentle cycle with specialist sleeping bag cleaner or mild detergent. Avoid fabric softeners as these can damage the insulation's performance. Ensure the bag is thoroughly dried before storage, either using a tumble dryer on low heat with tennis balls to restore loft, or by hanging in a warm, dry space. The Polair fabric construction and ThermoLock insulation are specifically engineered to withstand regular washing without losing performance.
What does the mummy shape mean and who is it suitable for?
A mummy sleeping bag tapers from the shoulders down to the feet, creating a snug fit that follows your body shape. This design reduces the amount of air space inside the bag that your body needs to heat, making it thermally efficient and reducing overall weight and packed size. The Atlas 350's mummy shape works well for back sleepers and those who don't move excessively during sleep. If you're a side sleeper who changes position frequently, or prefer more room to move your legs, the tapered foot section might feel restrictive. The shaped hood with drawcord helps seal warmth around your head and shoulders where heat loss is greatest.
How do I properly store the Vango Atlas 350 between camping trips?
Never store the Atlas 350 in its compression stuffsack long-term as this damages the insulation's ability to loft properly. After each trip, air the bag thoroughly to remove moisture, then store it loosely folded or hung in a cool, dry place. A large cotton storage sack or old pillowcase works well, allowing the ThermoLock insulation fibres to remain uncompressed and maintain their structure. Only use the compression stuffsack during transport. Before storing, check the bag is completely dry and clean, as storing damp or dirty sleeping bags can lead to mould growth and degraded fabric performance.
What does ThermoLock insulation mean and how does it perform?
ThermoLock is Vango's branded synthetic insulation technology designed to maintain thermal performance even in damp conditions. Unlike down insulation which clumps and loses insulating ability when wet, ThermoLock fibres continue to trap air and provide warmth when exposed to moisture or condensation. The high loft construction creates air pockets that retain body heat whilst remaining breathable. The Grade A fill used in the Atlas 350 combines durability with warmth-to-weight ratio, and the Insulation Lock S-stitching prevents the fibres from migrating or bunching up over time, maintaining even coverage throughout the bag's lifespan.
Can I zip two Vango Atlas 350 sleeping bags together?
The Vango Atlas 350 features a two-way zip that allows you to unzip from top or bottom for ventilation control. To zip two bags together, you need one left-hand zip and one right-hand zip version. Check the product specifications or zip orientation before purchasing if you want to create a double sleeping bag. When zipped together, the bags create a larger sleeping space for couples or families, though thermal efficiency decreases compared to using them separately as there's more air space to heat and potential draught gaps along the joined zip line.
What is single-layer stitch construction and why does it matter?
Single-layer stitch construction means the insulation is held in place by stitching that goes through one layer of fabric rather than penetrating through both shell and lining. This construction method, combined with the Insulation Lock S-stitching pattern, distributes the fill more evenly across the sleeping bag and reduces cold spots where stitching would otherwise compress the insulation. The technique helps maintain consistent warmth throughout the bag and prevents the fill from shifting into clumps or leaving bare patches, particularly after washing or extended use. This construction approach is common in mid-range sleeping bags where thermal efficiency matters but weight isn't the absolute priority.
How does the Vango Atlas 350 compare to down sleeping bags?
The Atlas 350 uses synthetic ThermoLock insulation rather than down feathers. Synthetic bags offer several practical advantages for UK camping: they maintain warmth when wet, dry faster, cost considerably less, and are machine washable. Down bags provide better warmth-to-weight ratios and pack smaller, but lose insulating properties when damp, require specialist cleaning, and come at premium prices. For festival camping, family trips, or anyone camping in typically damp British conditions, synthetic insulation like the Atlas 350 offers more reliable performance. The trade-off is slightly increased bulk and weight compared to equivalent down bags, though for car camping or short walks to pitches this rarely matters.
EAN-13 : 5059474016982
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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
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