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OEX Helios EV Hydrodown 300 Sleeping Bag

Discount Card Price£99.00

Retail Price £170.00 Was £129.99Save 42%

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A very warm, very lightweight 3-season down sleeping bag, packable to a compact size.

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Product code: 15903110 / 329251

A very warm, very lightweight 3-season down sleeping bag, packable to a compact size.

Small & light enough to carry on longer trips
Hydrophobic fill keeps you warm even if damp

Warm, comfortable and very lightweight, the OEX Helios EV Hydrodown 300 Sleeping Bag is ideal for temperatures around 3°C, but will keep you comfortable down to -3°C.

The 300gsm / 600 Fill power duck down insulation has a hydrophobic coating that makes it practical for British camping - it retains its loft in damp conditions, so it still keeps you warm.

The compression stuff sack lets you pack it down to a very compact and manageable size for packing and carrying (it also comes with a larger mesh bag for long-term storage).

  • Ultra comfort lining
  • Inner pocket
  • Internal wind baffles
  • Anti-snag zipper band
  • Tested to EN13537

The Allied Down Feather in this sleeping bag meets the Responsible Down Standard (RDS): ETHICALLY PRODUCED - ENVIRONMENTALLY RESPONSIBLE - 100% SUSTAINABLE.

40 x 18
Backpacking, Expedition, Touring, Travel, Trekking
3 Season
20D Nylon Shell and Lining
Compression Sack, Draught Collar, Foot Box, Hood, Insulation
220 x 78cm

This product qualifies for the following delivery methods

Standard Delivery (Up to 10 days) (FREE)


Once despatched you will receive updates from the courier.

Premium Express Delivery (2 working days) (£6.95)


Premium Express delivery takes 2 working days, order by 4pm. Once despatched you will receive updates from the courier.

Reserve and Collect (within an hour) (FREE)


We will notify you when your order is ready to collect.

Click and Collect (Up to 10 days) (FREE)


You will be notified when your order is ready to collect.

AM Delivery (£7.95)


Order by 8pm and get your item delivered to you by 12pm the next working day (Not available for NI, Channel Islands or Highlands)

Bike Delivery (£4.95)


Bike delivery is £4.95. This applies to all bikes, and these orders are upgraded to a DHL courier service.

British Forces Post Office (BFPO) (FREE)


Delivery before 10:30am (£8.95)


Saturday Delivery (order by 6pm Friday) (£5.95)


Next Day Delivery (order by 6pm Mon - Fri) (£2.95)


Delivered by UK Mail. Remote areas may take longer, please click here for more info.

Click and Collect Next Day (order by 6pm Mon - Fri) (£2.95)



Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

Ratings & Reviews

Overall Rating

1.40 out of 5
5 reviews
Write a review
1.40 out of 5

Feathers everywhere!

I found this loosing feathers everytime I slept in it. It's nowhere near as warm as I expected and likely to get less so as the filling escapes! Avoid.

1.40 out of 5

NOt very warm

Used a couple of times in late spring and I constantly woke through the night very cold.
In the morning my tent was full of feathers, not down, like I’d been wrestling a goose.
Not recommended

1.40 out of 5

dont touch Bag

only fit for summer use you hold it up to the light and see right through, not fit for purpose useless used on wild camps in june and very cold, worst bit of kit I have, Money wasted.

1.40 out of 5


I agree with previous poster here. There were numerous negative reviews previously, before GO updated website.
This sleeping bag is in no way what so ever a 3 season bag.
It is a terrible bag. AVOID

1.40 out of 5

Not very warm. Add min 5C to quoted ratings.

Bought 18 months ago when there were lots of good reviews. Recent reviews were bad so now they’ve removed them all! Used by several people and it’s nowhere near the ratings. 2 season use only.

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