Under Armour HeatGear Mock Long Sleeve Compression Top 1369606

Under Armour HeatGear Mock Long Sleeve 1369606 is a men's compression baselayer with a mock neck. The listing describes lightweight, stretch fabric with mesh ventilation panels and sweat-wicking, quick-drying properties, while the compression fit is explicitly ultra-tight.

At a glance

HeatGear performance baselayer with a mock neck and compression fit.
Stretch-mesh back and side panels are specified for ventilation.
The listing says the fabric wicks sweat and dries fast.
Ergonomic seam placement is intended to keep seams away from high-abrasion areas.

Price

£20.59Save 43%

Reference price: ~~£36.00~~

Price checked: 14 Nov 2026

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Under Armour Mens Mock Long Sleeve

£21.49

Pros and cons

Pros

Stretch fabric and mesh panels offer movement and ventilation features for active use.
The ultra-tight, second-skin cut is suited to buyers seeking a close-fitting compression layer.
The stated polyester-elastane blend includes elastane for stretch.

Cons

The ultra-tight compression cut may not suit buyers who prefer a relaxed or regular-fit top.

Technical specifications

7 specifications

Identity and fit
Brand	Under Armour
Model	1369606
Department	Men's
Fit	Ultra-tight, second-skin fit.

Materials and construction
Fabric composition	79% Polyester/21% Elastane
Listed weight	150 g
Construction	Stretch-mesh back & side panels deliver strategic ventilation

What to know before buying

The listed fit is ultra-tight and second-skin. Use the supplied size guide and measurements when choosing a size, as customer feedback reports mixed sizing experiences. Product performance claims are manufacturer statements, not independently verified.

Who is it for?

A good fit for

Men seeking a close-fitting long-sleeve baselayer for training or layering.
Buyers who prefer stretch fabric and ventilation panels during active use.

Less suited to

Those wanting a loose-fitting shirt or a garment specifically described as insulated for cold weather.

Under Armour HeatGear Mock Long Sleeve Compression Top 1369606 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 3,535 ratings

5 stars73%73%
4 stars15%15%
3 stars6%6%
2 stars3%3%
1 star3%3%

Customer feedback is generally favourable about warmth, cooling, material quality, washability and functionality, with some buyers also liking its appearance. For active use, the reported quick drying and comfort may matter, but these are customer impressions rather than verified performance results. Fit feedback is mixed, so buyers should take the stated ultra-tight compression cut into account and consult the size guide.

Positive themes

Customers report that the top works well for runs and appreciate its washability and material quality.

Mixed feedback

Fit receives mixed feedback, with some customers finding it true to size and others reporting sizing issues.

Frequently asked questions

What fit does this Under Armour top have?

The listing describes its compression fit as ultra-tight and second-skin, so it is not a regular or relaxed fit.

What is the fabric made from?

The stated composition is 79% Polyester/21% Elastane.

Does it have ventilation panels?

Yes. The listing specifies stretch-mesh panels on the back and sides for strategic ventilation.

Is this a warm winter thermal top?

It is described as a HeatGear performance baselayer, not as an insulated thermal garment. Customer feedback mentions use on winter runs, but that does not establish insulation performance.