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Out of stock - OEX Fathom EV 400 Sleeping Bag

Out of stock

A sleeping bag that gives you comfortable warmth for lightweight camping all year round.

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Product code: 15904992 / 329250

A sleeping bag that gives you comfortable warmth for lightweight camping all year round.

Soft, warm and comfortable
Very light and compactable

OEX Fathom sleeping bags are made using high quality lightweight materials and insulation to give you reliable, comfortable protection with minimal weight and manageable bulk.

The Fathom EV 400 is ideal for temperatures around -1°C, but will keep you comfy down to -8°C. Its compression stuff sack lets you pack it down to a tiny size and fit it into your kit.

  • Lightweight synthetic fill
  • Ultra-comfort lining
  • Internal security pocket
  • Internal insulated baffles
  • Anti-snag zipper band
  • Tested to EN13537
42 x 21cm
Travel, Backpacking, Expedition, Touring
4 Season
Insulation, Compression Sack, Double Layer, Draught Collar, Foot Box, Hood
215 x 80cm

This product qualifies for the following delivery methods

Standard Delivery (3-5 Days) (£3.95)

FREE on orders over £70.00


Once despatched you will receive updates from the courier.

Express 2 Day Delivery (£5.95)


Express delivery takes 2 working days when order is placed before 1pm Monday-Friday. 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 (3-5 Days) (FREE)


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

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.

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)

Standard Large Delivery (3-5 Days) (FREE)


Standard Large Delivery (3-5 Days) (£200.00)


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)


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

4.08 out of 5
13 reviews
Write a review
4.08 out of 5

Great value for money

Great value, for the price this is perfect.

4.08 out of 5

wildcamper in the fells and highlands

its light weight and compresses really well. I wild camp most weeks at times in subzero degrees everytime in a mountain 2 month ago did a camp at 2800ft and the tent froze the water froze i was cozy

4.08 out of 5

Great sleeping bag used...

Great sleeping bag used twice so far and it’s been more than up to the job.Don’t think it’s a 4 season bag more like 3

4.08 out of 5

What a sleeping bag......

What a sleeping bag... saves me in extreme low temps which is good to rely on (just in case) is snug and not too hot in England

4.08 out of 5

Great product. Was so...

Great product. Was so so warm and plenty of space. Inside it

4.08 out of 5

Cold, not consistent with...

Cold, not consistent with the specs claimed by the company. Poor build quality ripped on first night at the seems. Made in China.

4.08 out of 5


A fine summer/ autumn bag but was freezing with 5 layers on inside the bag at around -1 the other night

4.08 out of 5

Cannot fault the quality...

Cannot fault the quality and feel of the bag, very nice indeed. Marked down as the rating on it is optimistic to say the least. This is more of a 3 season bag than 4. Packs down small and is reasonably lightweight, and is a pretty good buy for the price, but take thermals and a liner if you are out anywhere and its near freezing.

4.08 out of 5


Used twice, both times in the winter in midwales (late November/early December) when the temperature was well below freezing and was kept really nice and snug, excellent quality lining.

4.08 out of 5


Packs down really small compared to others saves lots of room. Which was it's main feature for me. I found this really warm. I slept in 2°c in windy sleet and was very cosy. Definitely worth the money

4.08 out of 5


good quality bag and lite weight and packs small
BUT : definitely not a 4 season bag
took it down to 9c and I was not warm at all
2 to 3 season bag at the most

4.08 out of 5

Decent sleeping bag

Nice roomy bag, but certainly not warm enough to be a 4 season bag. This bag is suitable for 2/3 season camping. Well made.

4.08 out of 5

Good bit of kit

Brought this for an impromptu Easter weekend camping trip.

Comfy, more than roomy for a mummy bag, it slept both me (5ft 6 - 53kg) and my dog (working cocker). No lumps or bobbles, one well placed draw cord for tightening up the hood, and easy to pull zipper.

Only downside was my legs were a little cold but then I have no body fat and am always cold. Wrapped my gilet around my legs and I was cosy again. I've purchased a fleece liner for next time (probably a good idea with the dog anyway, keeps it cleaner) but as everyone is different, you may not need it.

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