To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
The Mountain Equipment Helium 250 Left Zip weighs less than most bottles of water which makes it the perfect sleeping bag for those travelling light in warmer weather.
The Mountain Equipment Helium 250 Left Zip weighs less than most bottles of water which makes it the perfect sleeping bag for those travelling light in warmer weather.
Mountain Equipment

Mountain Equipment Helium 250 Sleeping Bag - Regular - Left Zip

£187.00  £220.00  15% off
Click & Collect for Free
Earn 
 in Customer Rewards when you buy this item today
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on the Undetermined
Earn Rewards
You will earn of rewards points to spend on your next purchase from us, anything online and instore when you purchase this item.
FREE UK Returns.

You can now return any purchase within 30 days Free of Charge with our simple Royal Mail returns process.


Returns Information:

  • Returns are FREE for UK customers.
  • In the event that your purchase is not suitable, for whatever reason, you have the right to return it to us.
  • Goods should be returned in new condition, unused and with their original undamaged packaging.
  • We aim to process all returns within 72 hours. This may take slightly longer at busy times of the year. We will e-mail you once your return has been processed.
  • Any items returned by this service will be refunded unless faulty or shipped in error.
  • If you wish to exchange an item for any reason, please place a new order for the items that you want.
  • Please note that it is your responsibility to pay for the return postage costs if you live outside of the UK, no postage costs are refundable.
  • Goods may be returned for a refund within 30 days of receipt.
  • You do not need to contact us to notify us of your return unless the item is faulty or is outside of our 30-day policy.
  • Goods must be packaged securely to ensure they are not damaged in transit. The responsibility and liability of the goods remain with you until we are in receipt of the goods.
  • For health and safety reasons face masks cannot be returned for an exchange or refund.
  • Climbing & PPE Safety Equipment can only be returned on very strict condition. Everything must be exactly as it was received, with packaging and labelling intact. If there is any sign or possibility that the goods have been used or contaminated then we regret that we are unable to accept a return on the grounds of consumer safety.
  • In the unlikely event that your purchase develops a fault, for whatever reason, then please contact us first either by telephone or email for further instructions. In the majority of cases, any faulty goods will have to be returned to us and then forwarded on to their respective suppliers for inspection. Please be aware that this process may take several weeks in some cases. Any postage costs paid will be refunded by THE CLIMBERS SHOP if a product is deemed as faulty and still under a manufacturer's warranty.
  • If you purchased in-store please contact the relevant shop directly.

Returns Process:
  • Returns are FREE for UK customers.
  • You can return your order for FREE via one of 10,500 Post Offices. Your item will be fully tracked on its way back to us. If you're returning a faulty item, please contact us so we may assist you.

How do I return an item?

  • Download our returns form and once complete, enclose with your return.

  • Ensure you include all tags with your return and package securely.
  • Create your FREE returns label. If you do not have access to a printer your local post office can print the label for you. If the Royal Mail website is not accessible, please try again later.


Only orders that meet the following conditions may be returned using Royal Mail Tracked Returns
  • Returned parcels must have specific dimensions no larger than 61cm L x 46cm W x 46cm D
  • Returned parcels must weigh no more than 20Kgs
  • No aerosols or combustible products
  • Do not affix the Royal Mail returns label to the product packaging (shoe boxes etc.)

Mountain Equipment Helium 250 Sleeping Bag - Regular - Left Zip Information

Season : SS21

Brand : Mountain Equipment

Code : 5065864

The Helium 250 Left Zip is a down sleeping bag packed with technology and features that doesn’t compromise on weight, making it perfect for travelling light in warmer weather. The bag has been thermally mapped with the density of each baffle assessed and calculated to give optimal performance. This process has helped to save weight yet increase performance and warmth ratings at the same time; ME’s ‘Baffle by Baffle’ approach. Baffles have been designed so the walls increase thermal efficiency and reduce cold spots, giving a warmer night’s sleep for less weight.

This bag features the Alpine fit which is more tapered at the shoulders and feet, giving a closer cut that increases thermal efficiency and minimises weight. A continuous V-baffle has been implemented in the side zip to make the Gemini system, made with a fully integrated design that reduces cold spots while using less down, saving both weight and down.

The neck collar can easily be secured and opened with the Lode Lock magnet closure, able to be used with one hand and designed to prevent accidental opening. Easy-run dual tether cords help to tighten the neck , with 5 baffles and slightly higher volume providing excellent insulation and plenty of space. The side seams have been placed in a near-even split between the top and bottom to make it easier to get in and out, complementing the 4 baffle foot-box that helps keep feet toasty warm with its highly sophisticated construction.

Protecting all of the technology and down is a Helium 20D outer shell; breathable for the down to loft with a weight of just 38g/m2.

Specifications:
  • HELIUM™ 20 outer shell is very light and highly breathable
  • 254 g of 90-10 Pure Duck Down with a minimum fill power of 700
  • Alpine fit maximises thermal efficiency
  • Slanted Box-Wall baffles and Stitch-Through baffles
  • Mid-level side seams
  • 5 baffle anatomically shaped hood
  • 4 baffle anatomically shaped and offset foot-box
  • Full length Gemini™ zip baffle and integrated collar with Lode Lock™ closure
  • Supplied with waterproof roll-top stuff-sack and storage cube
  • Weight: 680g / 24oz

Good Night's Sleep Temperature: 1°C/34°F
  • Comfort: 8°C/46°F
  • Comfort Limit: 3°C/37°F
  • Extreme: -11°C/12°F
Size Guide:
  • Length Inside: 190cm
  • Max Width at Shoulders: 75cm
  • Foot Width: 50cm
  • Max User Height: 185cm
  • Total Bag Weight: 705g
  • Total Fill Weight: 254g
  • Packed Dimensions: 23x18x15cm

Buyers Guide - How to choose a sleeping bag

A good night’s sleep is key to enjoying your time in the hills and vital for physical and mental recovery. Keeping toasty while you sleep is important because your body will naturally drop in temperature during deep rest. There are a multitude of sleeping bags available out there covering a vast price range but if you choose wisely, maintain your bag and store it correctly it could very well keep you snoozing happily for 20+ years.

Choosing the right sleeping bag for you involves asking some key questions included below. To help you understand why they are important simply click through to our full buyers guide to read about the incredible technologies, science, testing and the design involved in getting you a good nights sleep....

- Synthetic or down?

- Men’s or women’s?
- What is a "season" and why do the prices vary so much?
- How do I make sense of comfort ratings?
- Why should a bag “fit” me?
- So do I get what I pay for?
- I brought a “warm” bag but I’m still cold at night.
- What about the environment?




Top tips to make the right choice:

If you can visit the shop to look at them in person this is ideal as not only does it allow you to place bags side by side to instantly see the difference in cut and loft but it also gives you the opportunity to try the bags on. Just like clothing, they are all cut differently and often come in length options so that you can get exactly the right fit for you. These days, however, travelling long distances and meeting face to face may not be quite so straightforward so we are more than happy to talk with you over the phone to discuss which sleeping bag may work best for you. We are all active users of the equipment we sell and we have all had our fair share of miserable nights, that’s why we are all happy to share our knowledge - so that you don’t have to!
Sizing Information
Professional Opinion
Product Reviews
Write a review
0 As rated by 0 Customers

Write a review for Mountain Equipment Helium 250 Sleeping Bag - Regular - Left Zip

Your name
Your email address
How would you rate it?
Would You Recomend this product?
Let others know your opinion
Submit Review Close
Home Camping and Backpacking Camping Mountain Equipment Sleeping Bags

Click & Collect

Find out more

Free UK Delivery when spending £50+

Find out more

Express Delivery Options Available

Find out more

Want exclusive news & offers?

Sign up to our newsletter today!

Sign up now
Secure Payments from Visa, Mastercard, Maestro, PayPal
The Climbers Shop and Joe Brown Shops ©
Site Design & Integrated Ecommerce © Citrus-Lime Limited