Mountain Warehouse Talus IsoTherm Men’s Base Layer Top

The Mountain Warehouse Talus IsoTherm base layer top is a men’s long-sleeved, round-neck layer described as lightweight and designed to retain warmth while allowing moisture to escape. Its synthetic-style wicking and quick-drying claims suit active use, though the supplied listing does not specify the fabric composition or garment measurements.

At a glance

IsoTherm is described as densely packed fibres intended to retain warmth without adding bulk.
The maker describes the fabric as breathable and moisture-wicking, moving perspiration away from the skin.
Lightweight and quick-drying properties are presented for active wear and travel.
The long-sleeved, round-neck design is positioned as a base layer for activities such as skiing and snowboarding.

Price

£22.94Save 15%

Reference price: ~~£26.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Warmth-focused construction is paired with claimed moisture wicking and breathability for active layering.
Lightweight, quick-drying fabric may be convenient for travel and washing.
Machine-washable care is specified.

Technical specifications

5 specifications

Identity
Brand	Mountain Warehouse

Design and intended use
Garment	Long Sleeved Round Neck Top
Range	Talus Mens
Insulating fabric	ISOTHERM
Care	Machine washable

What to know before buying

The listing gives no fabric composition, size measurements or specific temperature rating for this top. The guidance about synthetic fabrics working to about -10*C is general base-layer advice, not a tested temperature rating for this garment. A close fit is recommended in the listing for base layers, so consult the selected size information before buying.

Who is it for?

A good fit for

Men seeking a long-sleeved thermal layer for skiing, snowboarding, hiking or walking.
Buyers who want a lightweight underlayer with claimed moisture wicking and quick drying.
Travellers looking for a machine-washable layer that is described as easy to pack.

Less suited to

Buyers who need a confirmed fibre composition, garment measurements or a specific cold-weather temperature rating before choosing.

Mountain Warehouse Talus IsoTherm Men’s Base Layer Top · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 22 ratings

5 stars55%55%
4 stars15%15%
3 stars10%10%
2 stars13%13%
1 star7%7%

The supplied evidence includes aggregate ratings but no customer comments, so it cannot establish specific strengths, complaints or reasons for the ratings. The distribution is mixed, with more positive than negative ratings but a noticeable share of low ratings. Treat that as limited context rather than evidence about fit, warmth or moisture management, which are described as product claims rather than verified customer experience.

Frequently asked questions

What is the Mountain Warehouse Talus IsoTherm top designed for?

It is described as a thermal base layer for activities including skiing and snowboarding, with lightweight, moisture-wicking and warmth-retaining properties.

Does the listing state what the top is made from?

No fibre composition is supplied for this garment. The listing’s general base-layer guidance discusses synthetic and polyester fabrics, but does not confirm that either is the top’s composition.

Is this top machine washable?

Yes. The supplied product information describes the garment as machine washable.

Does the listing give a temperature rating?

No specific temperature rating is given for the top. A temperature figure in the listing is general guidance about synthetic base layers worn with ski outerwear, not a confirmed rating for this product.