Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

Fly By 2-in-1 Shorts

Product code: T128981S

About this style

The Fly By shorts from Under Armour are an upgraded version of your favourite running staple, now featuring a convenient side zip pocket for small essentials. They're designed with a fitted, streamlined silhouette that comprises built-in compression shorts and a looser top layer. The lightweight woven fabric wicks sweat and dries quickly, while strategic mesh panels enhance ventilation. An updated ruched mid-rise waistband with an internal drawcord ensures a secure, personalised fit.

Curated By

Curated By
Online only

Fly By 2-in-1 Shorts

£36

£21.50

Colour

On Sale

Sale items

Customers say:

Fits a little small()
Waist

Free standard delivery over £60

Reviews (23)

4.6

83% Recommended this product

Mentions
04 April 2026SNHeyyy

Comfortable

Originally posted on Under Armour

Yes, I recommend this

I love the feel and wear when working out

Helpful?

04 April 2026

Comfy

Originally posted on Under Armour

Yes, I recommend this

Super comfy for running!!

Helpful?

29 March 2026DAGK

Fly By Shorts

Originally posted on Under Armour

Yes, I recommend this

The fit is slightly large. I don't really like the fit for tennis However, I bought them because of the compression shorts and a place to keep my tennis balls. They are lightweith and slightly longer shorts which I prefer.

Helpful?

23 March 2026Hid from osky

Good fit

Originally posted on Under Armour

Yes, I recommend this

Well fit and looks good on me!!

Helpful?

11 March 2026Jamestown99

Perfect

Originally posted on Under Armour

Yes, I recommend this

Great shorts fit perfect. Many other shorts are too short. These are the perfect. I am 5, 4 so they do not ride up

Helpful?

20 October 2025KDS22

Solid option

Originally posted on Under Armour

Yes, I recommend this

The shorts are comfortable and breathable. One note- if you’re looking for spandex in shorts that are tighter (for longer runs etc.), these might not be the best choice. The spandex are looser, more comfortable for longer term wear, but can rise when moved for a while.

Helpful?

01 October 2025mal21

Great for running

Originally posted on Under Armour

Yes, I recommend this

great shorts for running long distances, very comfortable and cute colors

Helpful?

20 September 2025Bonnie22

Comfy shorts

Originally posted on Under Armour

Yes, I recommend this

Breathable shorts. Great for running. Good material

Helpful?

14 September 2025Rae
Verified Purchase

Fly-by 2-in-1 shorts

Originally posted on The Sports Edit

Yes, I recommend this

These are very comfortable shorts, feels more confident to have the inside lycra.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How did it fit?

A bit small

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How did it fit?

A bit small

04 August 2025jemz9

Not Great

Originally posted on Under Armour

No, I don't recommend this

Didn't love these. They look great online, but in person the outer shorts clung to the inner shorts and did not look very good.

Helpful?

Replied

04 August 2025

Hey, Jill! Thank you for sharing your experience. We're sorry these shorts weren't a great fit. We'd love to get you in some different gear! Look out for an email from us soon.

02 July 2025NCHope

Comfortable with no chafing

Originally posted on Under Armour

No, I don't recommend this

I bought these specifically for running to prevent chafing and it does a good job. However, I would have LOVED for it to have pockets on both sides. It has one pocket but it's way too small to really fit anything except for my key. Would be better with a bigger pocket!

Helpful?

22 June 2025SDennis2125

Cool summer shorts

Originally posted on Under Armour

Yes, I recommend this

These shorts are very cool and great for running in the summer. Hoping they are as sturdy as my other under armour shorts.

Helpful?

09 June 2025SuperTeach

Comfortable with some coverage

Originally posted on Under Armour

Yes, I recommend this

These shorts are great for outdoor activity or gym use when you want a little coverage.

Helpful?

01 May 2025Nathale

Comfiest shorts ever!

Originally posted on Under Armour

Yes, I recommend this

I Have a really old pair of these that have held up for forever, the quality is great. I decided to get another pair in green, and was hoping it was the same feel and it is. My legs don’t chafe with these and I can wear them all day. The only difference between these is that my old ones had pockets and these don’t, but not a deal breaker for me.

Helpful?

23 April 2025Claudia Elias

I love it

Originally posted on Under Armour

Yes, I recommend this

I dont know The product. But I am satisfed!!!

Helpful?

07 April 2025Hope11111

Awesome for Running!

Originally posted on Under Armour

Yes, I recommend this

Super comfy and breathable. The inner shorts don’t ride up, and the fit is great. Perfect for running or workouts!

Helpful?

07 November 2024JJJ109
Verified Purchase

Worth the money

Yes, I recommend this

Great fitting - true to size. Good length for the shorter lady.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Comfort

Good

Material

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Comfort

Good

Material

Excellent

10 October 2024Partydress1234
Verified Purchase

Disappointing run

No, I don't recommend this

Had high hopes for these shorts but the underlayer is very thin and ride up as soon as I start running.

Reviewer Ratings

Quality

Fair

Value for Money

Fair

Style

Average

How did it fit?

A bit small

Comfort

Fair

Material

Fair

Helpful?

Reviewer Ratings

Quality

Fair

Value for Money

Fair

Style

Average

How did it fit?

A bit small

Comfort

Fair

Material

Fair

24 September 2024Iowa Girl

Great 2 in 1 shorts!

Originally posted on Under Armour

Yes, I recommend this

These 2 in 1 shorts look and feel great. Definitely worth the price! It would great if the exterior fabric didn't wrinkle when worn -- but that's a minor point.

Helpful?

12 September 2024Cook5

Love the layered shorts

Originally posted on Under Armour

Yes, I recommend this

This product is true to size. I am 5'2" 100lbs and the size small fit perfect. The blue color is so gorgeous that I ordered additional items in the same color. These are my go to shorts!

Helpful?

1 of 4