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Under Armour

Online only

HeatGear Running Leggings

£36

£18

Colour

On Sale

Customers say:

Fits true to size()
Waist

Free standard delivery over £60

Product code: T129856S

About this style

Engineered for performance, these Under Armour Heat Gear leggings offer a regular fit with streamlined silhouette for unrestricted movement during runs. The lightweight, breathable fabric features moisture-wicking technology to keep you dry, while ergonomic seam placement avoids high-abrasion areas. A branded elastic waistband and practical drop-in side pocket complete this technical design.

Details & care

Fit and style

Regular fit

Elasticated waist

Unlined

Composition

79% polyester, 21% elastane

Care

Machine wash according to instructions on care label

Delivery, collection & returns

Delivery

Standard

Free over £60, or £3.99

Returns

UK returns

Free. Returns can only be arranged via postal options. Exclusions apply Full delivery and collection information Our returns policy

Exclusions apply

Full delivery and collection informationOur returns policy

About Under Armour

Train at your best, no matter the weather, with Under Armour's innovative clothing, footwear and accessory designs.

Reviews (616)

4.8

92% Recommended this product

Mentions
21 February 2026j111

Great product!

Originally posted on Under Armour

Yes, I recommend this

My son loves wearing these for football. Keep him nice and warm

Helpful?

16 February 2026Hng10

Great quality

Originally posted on Under Armour

Yes, I recommend this

Perfect for winter Great quality

Helpful?

27 January 2026Kkayewho

Great fitting pants!

Originally posted on Under Armour

Yes, I recommend this

Great look, Great feel & Great fit. My son really liked these pants. They will be very good for him to wear under his rugby shorts on the turf fields.

Helpful?

26 January 2026ROB180

excellent for walking

Originally posted on Under Armour

Yes, I recommend this

I USED MY NEW LEGGINGS FOR THE FIRST TIME TODAY. IT WAS A LITTLE CHILLY THIS MORNING AND I WAS EXCITED TO SEE HOW THEY FELT. FIRSTLY THE LEGGINGS WERE SO WARM AND COMFORTABLE, IT WAS REALLY A PLEASURE TO HAVE THEM. SECONDLY DUE TO SURGERY MANY YEARS AGO, I HAVE PAIN BY MY RIGHT HIP AND LEG. THE LEGGINGS GIVE ME A PAIN FREE WAY OF WALKING. I LOVE THIS PRODUCT.

Helpful?

16 January 2026crashman1369

Fits as described

Originally posted on Under Armour

Yes, I recommend this

the gear is the perfect size and is form fitting without being tight.

Helpful?

13 January 2026WTPunisher

Great Workout Gear

Originally posted on Under Armour

Yes, I recommend this

Fit was perfect. Love the side pockets

Helpful?

13 January 2026Alan Kats

all products are great and feet perfect

Originally posted on Under Armour

Yes, I recommend this

I purchased a lot of products from UNDER ARMOUR and never had any problems with any of them. Always on time and great feet.

Helpful?

12 January 2026charger67

they look good

Originally posted on Under Armour

Yes, I recommend this

I like these and will use them for track and XC.

Helpful?

06 January 2026

Very warm and comfortable leggings

Originally posted on Under Armour

Yes, I recommend this

UNDER Armor makes a great product for durability and price.

Helpful?

04 January 2026CJ P

Great fit, great feel!

Originally posted on Under Armour

Yes, I recommend this

Love the way these fit and feel. They stay put and do not roll. Just need chocolate brown as a new color

Helpful?

30 December 2025MicBos13

This product is super warm and comfortable!

Originally posted on Under Armour

Yes, I recommend this

These heatgear compression leggings are super warm and comfortable!

Helpful?

29 December 2025Thermal gear

Heatgear thermal pants

Originally posted on Under Armour

Yes, I recommend this

Tight fit so order next size up. Would be better with front access for going to the bathroom. Good material.

Helpful?

28 December 2025Baves

Great product

Originally posted on Under Armour

Yes, I recommend this

Great product in terms of fit and colour. Great breathability.

Helpful?

26 December 2025

Work out gear

Originally posted on Under Armour

Yes, I recommend this

Love how they feel on my body

Helpful?

25 December 2025Ay2007

Leggings

Originally posted on Under Armour

Yes, I recommend this

Great for cold football nights

Helpful?

23 December 2025UA94111

A bit pricey but good product

Originally posted on Under Armour

Yes, I recommend this

The price tag is a bit high but the product is exactly as advertised. Fits well and very comfortable for running or working out.

Helpful?

17 December 2025Dkuz

Very good quality!

Originally posted on Under Armour

Yes, I recommend this

This HeatGear product is very well fitted. of me is comfortable and easy to wash. Compressing amazing during the workout. I used similar for 10 years and it very reliable. Will se how long it will worn with new technology. Best!

Helpful?

15 December 2025Lui2023

Great Product

Originally posted on Under Armour

Yes, I recommend this

Under Armour compression pants offer a snug, supportive fit that enhances workouts and recovery. The fabric is breathable, stretchy, and durable, keeping you comfortable during intense training. They stay in place, wick sweat effectively, and provide excellent mobility without feeling restrictive.

Helpful?

12 December 2025Harambe56

Awesome

Originally posted on Under Armour

Yes, I recommend this

Awesome style and great fit

Helpful?

12 December 2025Dzmitry

Great stuff

Originally posted on Under Armour

Yes, I recommend this

I really like Heatgear. Help to train at cold weather and keep my legs warm.

Helpful?

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