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The Lhotse is a serious shell capable of handling the toughest mountaineering conditions. Whether you're battling blizzards or a heavy downpour on a long walk, this jacket is built to handle it all. 
The Lhotse is a serious shell capable of handling the toughest mountaineering conditions. Whether you're battling blizzards or a heavy downpour on a long walk, this jacket is built to handle it all. 
Mountain Equipment

Mountain Equipment Mens Lhotse Jacket Cosmos

£375.00 £500.00 25% off
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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 Undetermined
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90-day returns period

We hope that you are perfectly happy with your order from Trekitt, but we understand that you may want to return your purchase. We offer a 90 days return period from the date of purchase, and endeavour to process all returns within 48 hours of receipt.

We do not offer a free returns service. Therefore, all customers are responsible for any postage costs when returning any goods (excluding warranty returns).

For your convenience, follow here to the Royal Mail Returns Portal to arrange return postage for your items. This is not a Trekitt operated service.

The Trekitt Returns Policy Includes...
A 90 day return period and the Trekitt 2-year Common Sense Guarantee.

Exemptions
PPE (Facemasks, Climbing Equipment etc. ), Food Goods, Accessory Cord, Socks & Underwear can only be returned if they have not been worn and/or removed from their original packaging with all swing tags still attached. If there is any sign or possibility that the goods have been used, tampered with or contaminated in any way, then we cannot accept a return on the grounds of consumer safety. Zips are typically not covered under a manufacturer's warranty.

The above does not affect the Consumer Contract Regulations. Click here to read more.

Mountain Equipment Mens Lhotse Jacket Cosmos

Season:2024W C OFFER

Brand:Mountain Equipment

Code:005029-01286-

Product Ratings

Waterproof
WaterproofReally Waterproof
Breathability
BreathableUltrabreathable
Weight
LightHeavy
Features
Low Feature SetHigh Feature Set

We find this suitable for

Climbing

Expedition

Mountaineering

What is the Lhotse Jacket?

The Lhotse is probably one of the best UK mountain jackets available today. Designed specifically for the worst conditions and made using the best Gore-Tex Pro fabrics, this tough and reliable jacket will shrug off the worst of the weather and handle the rigours of the gnarliest mountaineering adventures.

What is it made of?

Made using 3 Layer Gore-Tex Pro 40D in the main body and hood, then the super burly 3 Layer Gore-Tex Pro 80D in the high wear areas such as shoulders and arms means this jacket was designed to take a beating from the weather and general mountaineering abuse. Mountain Equipment use the most breathable variant of Gore-Tex Pro (Gore-Tex Pro Most Breathable!) to keep you dry from both the inside and outside.

What are the features?

The guys at M.E. have used all of their Storm Construction techniques during the design and build of the jacket. Everything from seam construction, placements and taping, which face fabrics to use, bar tack reinforcement and storm guarded YKK Aquaguard front and pit zips. The velcro on the laminated cuffs doesn't allow water to freeze in it, meaning they'll stay tight in the coldest conditions. The inner pocket is also laminated and laser cut to further reduce stitching and weight. The face panel is also seamless for added comfort. The helmet-compatible hood has Cohaesive cordlocks (little buttons beneath the fabric); this means they're easier to use with big bulky gloves but also mean you won't have pieces of elastic flying around and hitting you in the face. The Dual Tether Hem Drawcord allows for greater fit customisation whilst also eliminating the risk of snagging things like ice axes and crampons. M.E have engineered all the pockets on the front of the jacket in accordance with their Stratum Storage System Construction which increases the internal pocket size by as much as 25%; so there's stacks of room for maps, gloves, hats and whatever else you like to store in your pockets. These pockets are cleverly placed above the harness-line for seamless use when climbing.

How does the Lhotse fit?

It is built around Mountain Equipment’s “Alpine fit” block so it has a closer fit but with enough room to allow for other layers. The sleeves are pre-shaped and articulated to allow for more natural unrestricted movement, while the shoulders are roomier than previous generations of this jacket for greater comfort and freedom of movement while climbing.
  • 3-layer GORE-TEX Pro Most Breathable 40D fabric
  • 3-layer GORE-TEX Pro 80D Most Breathable fabric reinforcements
  • Mountain HC Hood is fully adjustable with Cohaesive Cordlocks
  • Alpine fit with articulated and pre-shaped sleeves
  • Storm Construction techniques used throughout
  • 2-way YKK moulded AquaGuard centre front zip
  • Stratum Storage; 2 large pockets and 1 Napoleon pocket with YKK moulded Aquaguard zips
  • 2-way YKK WR underarm pit zips with laminated and bonded entry
  • Adjustable laminated cuffs and dual tether hem drawcords
  • Laminated and laser cut inner pocket with YKK zip

Care and maintenance

To keep your outdoor clothing and equipment in tip top condition and performing to its maximum we recommend the use of Nikwax products. We have been using Nikwax products since day one (26th March 1986) and have found them to be totally reliable, dependable and effective. Today’s Nikwax treatments contain environmentally friendly elastic water-repellent polymers that bond to fabric fibres, leaving the spaces between open and breathable. These stretchy polymers are able to stretch and move with the fabric so they stay put for longer and work better.

Nikwax treatments will not change the look or feel of the fabric and they are all water based, environmentally safe, non-flammable and contain no nasty Fluorocarbons. Nikwax products can be used to clean, re-proof and revitalise all your outdoor technical clothing and equipment.

Waterproof breathable clothing has a durable water-repellent (DWR) finish applied to the face fabric during the manufacturing process. The DWR forces water to bead up and roll off the surface therefore preventing the fabric from absorbing moisture. If the outside of your jacket is soaked in a layer of cold water, the warm damp air within can’t escape and will condense on the inside. This makes the jacket feel cold clammy and can make you think that it’s leaking. The DWR finish is not permanent and needs to be maintained and revitalised to optimise performance.

This three layer waterproof jacket should be cleaned regularly with Nikwax Tech Wash; I wash my jacket about once a month, or more often if it gets really filthy. Regular washing with Tech Wash will maintain the DWR for longer and remove salts and oils that can contaminate the fabric, and it will keep your lovely jacket clean and smelling fresh. Washing can be done in a machine according to the manufacturers care guidelines (on the internal label). First clean out any detergent and conditioner residue from the machine dispenser and then add the required amount of Tech Wash and away you go. Hand washing is also suitable but be sure to rinse the garment well.

When you notice that rain/water is no longer beading up and rolling off it’s time to re-proof. Nikwax TX Direct will re-instate a long lasting DWR to completely rejuvenate your jacket. Re-proofing can also be done in the machine once a garment has been washed. Just add the TX-Direct and use the same programme you used for washing. You can also use the spray-on product on a damp garment that has just been washed.

You wouldn’t buy a Ferrari and never have it serviced, so make sure you regularly wash and re-proof your quality kit.

Technical Information

Weight: 500g

Fabrics: 3-Layer Gore-Tex Pro 40D / 80D reinforcements


For best performance:

With any new waterproof, we advise you to wash the product with the appropriate tech wash and reapply a fresh DWR to activate the technology and achieve the best performance from day one.

How does waterproof technology work?

Modern waterproof technology often uses a waterproof membrane sandwiched between layers of fabric and a DWR (Durable Water Repellent) on the outer material.

What is 'wetting out', and how does it affect my waterproof?

DWRs commonly get worn down from contact, whether with your backpack or your fingertips. When the DWR wears down, your waterproof product may begin to 'wet out', meaning the water stops beading off the surface and starts to soak in instead.

While the waterproof membrane will prevent the jacket from leaking or water from getting inside, when your jacket wets out, moisture (from sweat or condensation) can build up on the interior, causing it to feel moist.

There's a common misconception that, when this happens, the product is faulty because people believe the waterproof membrane is leaking. However, this is most likely not the case; you simply need to clean your jacket and reapply the DWR.

The easiest way to spot when this is happening is to see if water beads off the material's surface or soaks in.

PFC/PFAS usage in modern waterproof and DWR technology

Most modern DWR technology avoids the use of PFCs/PFAS chemicals.

PFC-free means perfluorinated chemical-free. Companies such as Gore-Tex® are also beginning to eliminate these harmful chemicals in their waterproof membranes with technology like Gore-Tex® ePE.

What are PFC/PFAS chemicals?

Perfluorinated chemicals (PFCs) are also known as forever chemicals and cause environmental harm, similar to PFAS.

PFAS means per- or poly-fluorinated alkyl; these are a group of industrial chemicals that also cause detrimental harm to the environment, often through product and garment manufacture.

These chemicals can't break down, so once they reach nature (usually via factory water waste), they stay in the ecosystem and contaminate living organisms, working their way up the food chain. PFAS and PFCs are suspected carcinogens and have been known to affect mammal reproduction and hormone production. Therefore, many leading brands in the outdoor industry are now prioritising cutting out the use of these chemicals entirely to contribute to a more responsible manufacturing process.

How to care for a new waterproof product

PFC/PFAS-free waterproof products still perform effectively. However, they will require more frequent care (washing and reapplying a DWR) to ensure consistency. We stock various care products for this, which you can browse here. If this is your first time doing this, check out our easy how-to guide by clicking here.

Sizing Information

Click here for the manufactures size charts.

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