# Mountain Warehouse Merino Thermal Baselayer Pants for Men

Mountain Warehouse Merino Thermal Baselayer Pants are men's base-layer bottoms made with merino wool. The listing describes moisture-wicking, breathable fabric, an elastic waistband and a built-in fly, aimed at warmth without added bulk for outdoor activity.

- [Original product page](https://bargainpostbox.co.uk/product/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [View offer](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Mountain Warehouse
- Model: 053249
- Category: Fashion & Accessories > Clothing > Underwear & Sleepwear
- Price: 25.64 GBP
- Previous price: 34.99 GBP
- Discount: 27%
- Price checked: 2026-11-14T19:28:02.438Z
- Rating: 4.5 / 5
- Reviews: 823

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Merino wool is described as temperature-regulating and able to perform when wet.
- Wicking and breathable fabric is intended to move perspiration away from the skin.
- Elastic waistband and built-in fly.
- Lightweight design intended to add a layer without bulk.
- Machine washable on a 30 degree wool cycle, according to the listing.

## Pros

- Merino construction and moisture-wicking claims suit use as a thermal layer during walking, hiking or cycling.
- Built-in fly and elastic waistband add practical everyday details.
- The listing specifies a wool-cycle machine wash rather than hand washing.

## Specifications

### Identity
- Brand: Mountain Warehouse

## Before you buy

- The listing claims the material is laboratory tested as waterproof, while also describing these as breathable, moisture-wicking base-layer pants. Treat waterproofing as an unconfirmed listing claim and check the garment details if rain protection is important. The suggested close-fitting base-layer fit may not suit buyers who prefer loose underwear.

## A good fit for

- Men seeking a merino-wool base layer for cooler-weather walking, hiking or cycling.
- Buyers who want lightweight thermal bottoms with a built-in fly.

## Less suited to

- Buyers who need a verified waterproof garment or a stated insulation weight.
- Those who prefer a loose fit rather than the close fit recommended for base layers.

## Customer feedback

Customer feedback describes the trousers as warm and comfortable, with positive comments on quality, fit, softness, functionality and value. Some customers report they do not overheat in them, and the feedback mentions hiking in cooler months. Opinions differ on material thickness, so that point matters if you expect a particularly light or substantial layer. The overall rating distribution is largely five-star, but ratings alone do not explain individual experiences.
- Positive themes: Customers report warmth and comfort.
- Positive themes: Feedback also praises perceived quality, fit, softness, functionality and value.
- Mixed feedback: Customers disagree about how thick the material feels.

## Frequently asked questions

### What material are the pants made from?
The listing identifies merino wool but does not state a fibre percentage.
### Are these pants waterproof?
The listing makes a laboratory-tested waterproof claim, but does not provide a rating or test details. Its breathable, moisture-wicking descriptions do not confirm how the garment performs in rain.
### How should they be washed?
The listing recommends machine washing on a 30 degree wool cycle.
### Are they intended to fit tightly?
The listing says a base layer should fit close to the skin to help insulate or move perspiration. Check the size information for the selected variant.

## Alternative options

- [Men's 100% Merino Wool Base Layer Bottom - Active Thermal Under Pants \| Thermal Under Pants for Men, Winter Work, Skiing & Snowboarding, Cold Weather Activities](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [DANISH ENDURANCE Merino Wool Thermal Set for Men, Midweight 180 GSM \| Merino Wool Base Layer Men, Breathable & Odour-Resistant for Balanced Warmth, Mulesing-Free, for Active Winter Days](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [Risalti Merino Tech Men's Thermal Tights – Thermal Compression Trousers in Merino Wool, Men's Thermal Underwear – Seamless – Made in Italy](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [Men's 100% Merino Wool Base Layer Bottom - Active Thermal Under Pants \| Thermal Under Pants for Men, Winter Work, Skiing & Snowboarding, Cold Weather Activities](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [DANISH ENDURANCE Merino Wool Thermal Top for Men, Midweight 180 GSM \| Merino Base Layer Shirt for Men, Breathable & Odour-Resistant for Balanced Warmth, Mulesing-Free, for Active Winter Days](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [100% Merino Wool Base Layer Men Leggings Pants - Thermal Underwear + Socks \| All Season Merino Wool Long Johns, Odor-Resistant, Moisture-Wicking, Breathable, Itch-Free, for Hiking, Skiing, Travel](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [Men's 100% Merino Wool Base Layer Bottom - Active Thermal Under Pants \| Thermal Under Pants for Men, Winter Work, Skiing & Snowboarding, Cold Weather Activities](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [Mountain Warehouse Talus Mens Thermal Baselayer Pants \| Lightweight & Breathable Thermal Leggings, Quick Dry & Moisture Wicking Skins for Comfort & Warmth, For Active Wear & Winter](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [DANISH ENDURANCE Merino Wool Men's Thermal Set, Heavyweight 250 GSM \| Thermal Underwear Set, Odour-Resistant & Insulating, Mulesing-Free, for Skiing & the Extreme Cold](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)

## Add-ons

- [Mountain Warehouse Merino Mens Thermal Baselayer Top \| Lightweight & Comfortable Merino Wool Long Sleeve T-shirt, Antibacteri](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)
- [Mountain Warehouse Talus Mens IsoTherm Base Layer Top \| Lightweight & Comfortable IsoTherm Thermal T-shirt, Comfy, Warm & Moi](https://bargainpostbox.co.uk/visit/mountain-warehouse-merino-thermal-baselayer-pants-men-b0blgczdjk)

## Images

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 1](https://bargainpostbox.co.uk/i/fUcFrLg-r4UVBrcvPr643gDbTnSETEpLH9nwGHAf7-KTLXdQ4EGGnd-NWq1PtGbPnuJgqIpmp4Z9F_QAAZGZqMdk5_YY7Bs7I_uQp8beJ_QhLSLAq5JM9Ngi.jpg)

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 2](https://bargainpostbox.co.uk/i/K_zwDtPFkDKNIp_ZhxhlaOVKtQy-6BKL1oHFIADQNbY5866LOHs9wl6TKa0h28qrssBSjD0cQpwqXZFmRf2ulcRBpV37oCtIL4P_DHg_OHwbD_jFDQ8TM_kp.jpg)

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 3](https://bargainpostbox.co.uk/i/er_7PuqUXQoalx6sKiutHxHDR8WLFVb_VZKb4SZhzywuQswZebD2pGGw0yamSW6TkXBAmub2z0sgiM72MAqOPU6lN7NLDaP74d0jO-7FiNDzqzy55jCaQQdn.jpg)

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 4](https://bargainpostbox.co.uk/i/ka9pHew14EitcOUsLvoeFoUC3QS4Yv4kWWn6tv8B-_WG2w_s8BuU5EReR64OXyRCgnnu2teBUmrdlVNNGWqcq6Z79s9vYWtN2VVk3pNL9levjQTg0VGze7dP.jpg)

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 5](https://bargainpostbox.co.uk/i/PIFPR306cLtRcxmJQ6adVBs8caBDmjIN63IWm-Fr8LYE-LkNcqHuee-8_NsPo5ImzpxfsVQ0BWd8uRUe3rB8svs6oBoHlJ0T1mPM2tCFPnAmLRWgzI51bNgg.jpg)

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 6](https://bargainpostbox.co.uk/i/vM8ZIqfNy368bzOKdRoZIid3lGMHP6fIhXejGEH7acalhhBswHpVFayqEptXmaohDpzjgCzeg4I_4gPl4yY94vTNIwyQYL95GeihjNAPbGUGUo7R-NK5bLwJ.jpg)

![Mountain Warehouse Merino Thermal Baselayer Pants for Men — 7](https://bargainpostbox.co.uk/i/aLSVXGJ8jJbxi39XLLhMBkzQK1f5cZM37vOjwX9n_AqNO99OI15rxnmnXEgySEPHbE8Y64TiEIXiZ9BmqZojffutTyl7JE_CApoXtz0LYfhWwjxQGcekiVfv.jpg)