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Under Armour

Online only

Knockout Scoop Neck Racer Back Vest Top

£32

£22.50

ColourRacer Red/ BlackOut of stock online
Size

Free standard delivery on orders over £60

Product code: T128993S

About this style

The Knockout vest top from Under Armour is crafted from lightweight, breathable fabric to keep you cool and comfortable, no matter how hard you train. It's cut in a regular fit, with a scoop neckline and a sporty racer back. Four-way stretch ensures effortless movement in every direction. The curved hemline is split at the sides for easy movement and dropped at the rear for targeted coverage.

Details & care

Fit and style

Regular fit

Composition

Body - 90% polyester, 10% 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 (159)

4.8

88% Recommended this product

Mentions
11 March 2025Glee373

Nice fit

Originally posted on Under Armour

Yes, I recommend this

Cute design. I ordered a size smaller since it's loose and flowy. Fit perfect. Not too long. Cute over some leggings or bike shorts.

Helpful?

11 March 2025Stlberry

Please Do Not Discontinue

Originally posted on Under Armour

Yes, I recommend this

Love this tank. Have it in many colors. Want it in many more. But I am afraid they are phasing it out. Please do not discontinue.

Helpful?

02 March 2025Tr TATA

comfortable beautiful

Originally posted on Under Armour

Yes, I recommend this

A stylish, comfortable T-shirt for training under a white top looks very cool, the size is a little larger than expected

Helpful?

12 January 2025Michross

Nice top

Originally posted on Under Armour

Yes, I recommend this

This top feels great and is very comfortable while working out. It's a little long on me but I'm short so this is common.

Helpful?

15 December 2024Life of 60

This product has a great fit.

Originally posted on Under Armour

Yes, I recommend this

I love the knockout tanks have them in multiple colors. I’m 5’4 height 140 lbs the medium is a great fit. They have great wicking and allows air to flow through.

Helpful?

19 November 2024GK64

Great workout top

Originally posted on Under Armour

Yes, I recommend this

Sized down for a more fitted look. Love how it just skims the body and doesn't restrict movement. Is very flattering.

Helpful?

25 October 2024Irie

Cute and comfortable

Originally posted on Under Armour

Yes, I recommend this

Love this top. It’s breezy, comfortable and of course cute. Would highly recommend.

Helpful?

20 October 2024Booz305

UA knockout Tank

Originally posted on Under Armour

Yes, I recommend this

I absolutely love this top! I have it in White, black and just got the red. Great fit and soft fabric I am 5'3" 130 lbs and I ordered the med because I like a loser fit in the gym.

Helpful?

19 September 2024Anna Marie

Excellent product!

Originally posted on Under Armour

Yes, I recommend this

Wow, the material of the shirt has an absurd quality!! It is different from other brands, it has an incredible softness!! It is not dry or rough!! The quality is really superior to other brands!! I run and do weight training and I am surprised by the comfort of the Under Armour brand.

Helpful?

02 September 2024Christine68

Product has great featured

Originally posted on Under Armour

Yes, I recommend this

This product doesn’t shrink. Fits perfect after every washing. Light weight. Breathable. Soft. Stays white. Matches any pair of shorts. And breathable leggings. Goes great with any pair of Undrr Armour shoes

Helpful?

16 August 2024Lindsay7

Workout tank

Originally posted on Under Armour

Yes, I recommend this

Love this tank! Fits true to size and is comfortable no matter what type of workout I’m doing. Will be buying more colors!

Helpful?

29 July 2024Humperdink

Workout tank

Originally posted on Under Armour

Yes, I recommend this

It’s good for summer workout, cycling, running or any exercise. The length is just right for my petite body. I am 5’2, 110 lbs, xs is perfect.

Helpful?

24 July 2024j cesar

Great fit

Originally posted on Under Armour

Yes, I recommend this

Good fit and looks good on me

Helpful?

22 July 2024Cunmydream2

This tank is a "Knockout"

Originally posted on Under Armour

Yes, I recommend this

I am already an Under Armour tank fan girl, but this tank is my absolute favorite. I came across it by chance while shopping in-store. While the store did not have size, I was able to order 3 colors online. The shipping was fast and the tank did not disappoint. If these are restocked in my size, I will purchase more!

Helpful?

16 July 2024Vinalee

UA Tank Top

Originally posted on Under Armour

Yes, I recommend this

This tank top is amazing! Very functional and comfortable for running! I am extremely please with my purchase!

Helpful?

15 July 2024SW123

Very cool looking tank

Originally posted on Under Armour

Yes, I recommend this

This tank is very comfortable and doesn’t look like any tank I own.

Helpful?

28 June 2024Susan Dz

Great tank, runs big

Originally posted on Under Armour

Yes, I recommend this

Comfortable, cute and runs big. I ordered too large so had to return and need to order a size down. Please make a lot more colors too.

Helpful?

12 June 2024SarahF24

So cute and comfy

Originally posted on Under Armour

Yes, I recommend this

I love this top and the way it fits.

Helpful?

11 June 2024Phillip Puett

Great fit

Originally posted on Under Armour

Yes, I recommend this

Light and comfy fit is perfect.

Helpful?

05 May 2024Goofballs56

Great workout tank

Originally posted on Under Armour

Yes, I recommend this

I love the fit and comfort of this tank. I'm a 36 DD and the large is perfect. Loose flowy fit. Cute ,stylish style .Nice length to cover my butt and mommy belly. Perfect with bike shorts. I'm going to get more colors.

Helpful?

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