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Under Armour

Online only

HeatGear® Side Pocket Boxers

£32

Colour

Waist

Free standard delivery over £60

Product code: T128727T

Details & care

Fit and style

Regular fit

Elasticated waist

HeatGear® is our original performance baselayer—the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move. No athlete can go without it.

Composition

Body - 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 (286)

4.8

91% Recommended this product

Mentions
14 October 202597armour

Finally new colors

Originally posted on Under Armour

Yes, I recommend this

Love these shorts wear them everyday have always wanted more color options

Helpful?

09 October 2025Anonymous Otter

Colours are different from the website

Originally posted on Under Armour

No, I don't recommend this

I recently purchased one each of these shorts in rebel pink and blaze orange. Sizing and compression is just right, but the colours are quite off compared to what is shown on the website. They look a lot brighter and more vivid in the photos on the site, while in real life both colours are actually less vivid and more on the pastel-ish side. Great product, but should improve the photos for accuracy.

Helpful?

Replied

10 October 2025

Hi there! We're sorry to hear the colors didn’t appear as bright as expected. If you'd like to return or exchange them, we're happy to help! Look out for an email from us shortly.

05 October 2025oceansthirteen

Another quality product from Under Armour

Originally posted on Under Armour

Yes, I recommend this

Well made and well fitting. I always wear Under Armour compression shorts when working out and these just another quality piece of gear from Under Armour.

Helpful?

03 October 2025Topkick

Great but…

Originally posted on Under Armour

Yes, I recommend this

I routine and purchase UA Heatgear Long shorts for my athletic activities and have always been satisfied. The quality and fit our terrific and this most recent purchase is no different. However, first time I purchased shorts in this Pink color. Unfortunately, this color choice is much more transparent than I anticipated, especially when wet. Therefore if you’re concerned about modesty I recommend this Pink as a base layer only and paired with a suitable overgarment.

Helpful?

03 October 2025

Quality HeatGear product

Originally posted on Under Armour

Yes, I recommend this

Excellent product and well made quality HeatGear short, Love the quality and the hidden pocket by the side. Will buy it again!!!

Helpful?

23 September 2025DR55

Great

Originally posted on Under Armour

Yes, I recommend this

Fit well and comfortable. Cool color....Will be using them under running shorts for October Breast Cancer Awareness

Helpful?

22 September 2025SE33

Great fit and works well underneath shorts.

Originally posted on Under Armour

Yes, I recommend this

Works great for pickleball.

Helpful?

21 September 2025dakota1122

great fitting

Originally posted on Under Armour

Yes, I recommend this

perfect compression wear them every day like the new colours

Helpful?

21 September 2025Gfit26

Very comfortable

Originally posted on Under Armour

Yes, I recommend this

These compression shorts are comfortable and durable

Helpful?

18 September 2025Highly recommended color

Great color

Originally posted on Under Armour

Yes, I recommend this

First of all, I love this new color . I have these compressions in many colors and the quality of this one, like the ones previously purchased, doesn't disappoint . Would highly recommend these compression shorts

Helpful?

16 September 2025dinero21

This products has amazing features

Originally posted on Under Armour

Yes, I recommend this

This product is great for needed an extra pocket so you have more room in your hands , great for athletes, coaches and all of the above

Helpful?

14 September 2025Brown Trout

Great for so many adventures.

Originally posted on Under Armour

Yes, I recommend this

I primarily use these under my fishing pants to prevent chafing while wading and hiking when wet. They do a great job, the fit is good, the phone pocket is a bonus. They seem like they will hold and last.

Helpful?

01 September 2025Jay872

Long compression shorts

Originally posted on Under Armour

Yes, I recommend this

I’ve been using compression shorts for about 15 years now from UA to a number of other brands. I think this generation of UA compressions shorts are the best yet and my favorite compression shorts overall. The fit is good all around and it keeps the man parts supported while not choking the life out of ‘em. I currently own 5 pairs. The pocket is a great addition and allows me to wear any combination of shorts over my compression shorts while keeping my phone secure, especially when I’m running. I have a 32” waist and I’m on the slimmer side, so I use size small for a good level of compression. I’m also 6’1” with longer legs, so I use the 9” inseam shorts, which leaves about 2” of space above my knee. I do prefer long compression shorts, so I even own a pair of the 9” tall size (“SMT”) which provides an additional 2 inches (= 11”). These run right to my knee and feel great. These are very hard to come by, though, and will most likely need to be found elsewhere.

Helpful?

23 August 2025John Eel

Excellent to wear under a bathing suit

Originally posted on Under Armour

Yes, I recommend this

I bought these to wear under a bathing suit for water sports such as jet skiing.

Helpful?

18 August 2025Tom444

Great Product

Originally posted on Under Armour

Yes, I recommend this

I wear these to work at my construction job. They hold up and perform as they should.

Helpful?

08 August 2025CBLI

UA Shorts For Working Out!!!

Originally posted on Under Armour

Yes, I recommend this

Great Compression Shorts For Any Type Of Workout!!!

Helpful?

08 August 2025Skater P

Great fit

Originally posted on Under Armour

Fits great, well made product

Helpful?

31 July 2025Kaveesh

Great Lifting Shorts

Originally posted on Under Armour

Yes, I recommend this

Love wearing these when lifting underneath sport shorts. They also have a phone storage pocket!

Helpful?

17 July 2025Michel Laliberte

Green short

Originally posted on Under Armour

Yes, I recommend this

Amazing! it fits so well and look very good!

Helpful?

15 July 2025d25toronto

Comfortable and fits perfectly

Originally posted on Under Armour

No, I don't recommend this

Super comfortable, fits well, and the pocket is convenient.

Helpful?

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