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Under Armour

Online only

HeatGear Running Leggings

£36

£18

Colour

Out of stock online

    Sale items

    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 (612)

    4.8

    92% Recommended this product

    Mentions
    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?

    11 December 2025Coach 67

    Cool and Comfortable

    Originally posted on Under Armour

    Yes, I recommend this

    product fits well. cool and comfortable. wicks well.

    Helpful?

    10 December 2025Bob D27

    Great for winter bike riding

    Originally posted on Under Armour

    Yes, I recommend this

    These leggings are excellent for winter bike trail rides. They fit snugly under sweatpants, helping keep a slim profile and keep you comfortable.

    Helpful?

    10 December 2025

    Love them

    Originally posted on Under Armour

    Yes, I recommend this

    I love them so much that I want to wear them all of the time

    Helpful?

    09 December 2025Crunchtime90

    Fantastic

    Originally posted on Under Armour

    Yes, I recommend this

    Very comfortable, supreme fit, high quality, and extreme versatility

    Helpful?

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