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Fly-By 3'' Running Shorts

£27

Colour

Waist

Free standard delivery over £60

Product code: T128983S

About this style

Experience next-level comfort with the Fly-By 3'' running shorts from Under Armour. They have a slim fit with split sides that allow restriction-free movement. An internal drawcord on the elasticated waistband gives a secure feel. The woven fabric is lightweight, moisture-wicking and quick-drying to keep you feeling cool and fresh. An invisible zip pocket holds your headphones, while mesh panels enhance ventilation.

Details & care

Fit and style

Regular fit

Elasticated waist

Mid rise

Composition

Body - 100% polyester

Care

Machine wash according to instructions on care label

About Under Armour

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

Reviews (101)

4.6

88% Recommended this product

Mentions
24 July 2025bmac83

Comfortable shorts

Originally posted on Under Armour

Yes, I recommend this

These are very lightweight and breathe nicely while running. The small pocket fits keys or pepper spray.

Helpful?

23 July 2025High School Sophomore

Color: Horizon Blue-Horizon Blue (465)

Originally posted on Under Armour

Yes, I recommend this

Nice looking shorts. Like the loose fit BUT a little oversized. Recommend purchasing a size smaller.

Helpful?

21 July 2025StephSM

Great for the gym

Originally posted on Under Armour

Yes, I recommend this

Comfortable and a good length (I'm 5'11), I would buy again

Helpful?

20 July 2025Charity Lynn Baker

Very Dissapointed

Originally posted on Under Armour

No, I don't recommend this

Very disappointed I have wore under UA for years I have some shorts ten plus years old and never have I ever after wearing one time today for the first time the UA emblem came off. Not what I expected for the price and years I have had UA meet top expectations.

Helpful?

Replied

21 July 2025

Hi, Charity! Thanks so much for rocking with us through the years--we appreciate you! We're so sorry the logo came off and we totally understand the disappointment, as that should not have happened. Quality is the name of our game, so please look for an email from me on how we will make this right.

19 July 2025Apera

Great shorts!

Originally posted on Under Armour

Yes, I recommend this

They are so comfortable and cute!

Helpful?

18 July 2025Steph27814

Almost perfect

Originally posted on Under Armour

Yes, I recommend this

These shorts are very comfortable, thin, and breathable. The light pink is pretty see through, so thank goodness for the liner inside. I’m normally size 6 in pants and shorts, and the medium is perfect.

Helpful?

18 July 2025RowsMom

Perfect staple shorts

Originally posted on Under Armour

Yes, I recommend this

I love rhe layers and the wasteband ao comfy! And greay sale

Helpful?

17 July 2025Fred99

Love!

Originally posted on Under Armour

Yes, I recommend this

Perfect color and perfect size

Helpful?

12 July 2025Katie1971

Awesome UA Fly-By shorts

Originally posted on Under Armour

Yes, I recommend this

I love my black and white shorts! So comfy and roomy!

Helpful?

10 July 2025Pinto13

Great quality

Originally posted on Under Armour

Yes, I recommend this

Wife loves them......her go to. Great quality and price.

Helpful?

09 July 2025MeredithNS

My daughter loves these shorts!

Originally posted on Under Armour

Yes, I recommend this

I bought these for my daughter and she loves wearing them to basketball practice or just to school!

Helpful?

08 July 2025LinChi06

By far, our faves!

Originally posted on Under Armour

Yes, I recommend this

These are by far our favorite shorts by Under Armour! Love the relaxed feel, drawstring, and lightweight material.

Helpful?

08 July 2025Runlove

Great running shorts!

Originally posted on Under Armour

Yes, I recommend this

These are my favorite running and athleisure shorts! The material is so soft, has a comfortable liner, and a little zipper pocket for a key. The ether blue color is beautiful. Going to get more colors!

Helpful?

02 July 2025Shortsformyself

Great shorts

Originally posted on Under Armour

Yes, I recommend this

Loved them. They fit really well and are great for working out in. Very comfortable, I’m happy overall for my purchase.

Helpful?

27 June 2025AlishaD

Very comfortable

Originally posted on Under Armour

Yes, I recommend this

Bought these for my daughter and she loves them. They are very light and airy. They are comfortable and help keep her cool on hot days.runs true to size.

Helpful?

27 June 2025lg421

love these

Originally posted on Under Armour

Yes, I recommend this

I absolutely love these shorts. They are very comfortable, and even though they have a built in brief, they are still airy and light. The length is also just right; they aren't too short, but they also don't fall too long.

Helpful?

23 June 2025Tpetit

Good product

Originally posted on Under Armour

Yes, I recommend this

Good shorts for the price. Fits wells and comfortable. True to size. 140lbs bought medium.

Helpful?

22 June 2025Travieso87

Originally posted on Under Armour

Yes, I recommend this

Great for working out short don’t ride up.

Helpful?

21 June 2025Bright blue shorts

Great athletic shorts

Originally posted on Under Armour

Yes, I recommend this

Love the fit and the feel and the color is my favorite!!

Helpful?

20 June 2025AAughe

New shorts

Originally posted on Under Armour

Yes, I recommend this

Absolutely love the color and fit.

Helpful?

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