Soft, elegant activewear for effortless style and comfort – Belsize Activewear

Free shipping within the UK & worldwide over £100

Crafted from buttery fabrics with a perfect stretch, our collection blends style and support for every flow

Matching sets

Matching sets

Scallop cross back matching set

Scallop cross back matching set

Scallop cross back matching set

£87.00 GBP

£87.00 GBP

Clearance Sale

End of season clearance SALE Please note products are not refundable but...

Clearance Sale

Little athletes

Premium children's activewear

Sports bra Fitness jacket

Luxurious womens jumpsuits

Pilates jumpsuit green sage

Sale

Pilates jumpsuit green sage

Regular price £67.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £67.00 GBP
Unit price per

Sale
The Muse jumpsuit

Sale

The Muse jumpsuit

11 total reviews

Regular price £46.00 GBP

Regular price ~~£91.00 GBP~~ Sale price £46.00 GBP
Unit price per

Sale
Bali jumpsuit yoga and pilates

Sale

Bali jumpsuit yoga and pilates

Regular price £68.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £68.00 GBP
Unit price per

Sale
Black unitard jumpsuit

Sale

Black unitard jumpsuit

3 total reviews

Regular price £45.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £45.00 GBP
Unit price per

Sale
Scalloped jumpsuit

Sale

Scalloped jumpsuit

Regular price £69.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £69.00 GBP
Unit price per

Sale
Flared unitard

Sale

Flared unitard

Regular price £42.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £42.00 GBP
Unit price per

Sale
Flared jumpsuit

Sale

Flared jumpsuit

Regular price £65.00 GBP

Regular price ~~£86.00 GBP~~ Sale price £65.00 GBP
Unit price per

Sale
Winter jumpsuit CLEARANCE

Sold out

Winter jumpsuit CLEARANCE

Regular price £38.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £38.00 GBP
Unit price per

Sold out
Winter jumpsuit

Sold out

Winter jumpsuit

Regular price £48.00 GBP

Regular price ~~£89.00 GBP~~ Sale price £48.00 GBP
Unit price per

Sold out
Define Jumpsuit

Sale

Define Jumpsuit

1 total reviews

Regular price £49.00 GBP

Regular price ~~£81.00 GBP~~ Sale price £49.00 GBP
Unit price per

Sale
White Tennis dress 🎾

Sale

White Tennis dress 🎾

Regular price £39.00 GBP

Regular price ~~£68.00 GBP~~ Sale price £39.00 GBP
Unit price per

Sale
Gift Card

Gift Card

Regular price From £10.00 GBP

Regular price Sale price From £10.00 GBP
Unit price per
Flared jumpsuit unitard

Sale

Flared jumpsuit unitard

Regular price £65.00 GBP

Regular price ~~£86.00 GBP~~ Sale price £65.00 GBP
Unit price per

Sale

1 13

Chic activewear

Black Leopard Leggings

Black Leopard Leggings

11 total reviews

Regular price £59.00 GBP

Regular price Sale price £59.00 GBP
Unit price per
Pocket leggings

Pocket leggings

Regular price £56.00 GBP

Regular price Sale price £56.00 GBP
Unit price per
Flared leggings

Sale

Flared leggings

Regular price £42.00 GBP

Regular price ~~£63.00 GBP~~ Sale price £42.00 GBP
Unit price per

Sale
High Waisted Airbrush Leggings Black

High Waisted Airbrush Leggings Black

1 total reviews

Regular price £63.00 GBP

Regular price Sale price £63.00 GBP
Unit price per
High waisted leggings

High waisted leggings

9 total reviews

Regular price £56.00 GBP

Regular price Sale price £56.00 GBP
Unit price per
Luna collection top and leggings

Luna collection top and leggings

7 total reviews

Regular price From £53.00 GBP

Regular price Sale price From £53.00 GBP
Unit price per
Beige leggings second skin

Sale

Beige leggings second skin

Regular price £49.00 GBP

Regular price ~~£56.00 GBP~~ Sale price £49.00 GBP
Unit price per

Sale
Airbrushed burgundy leggings

Airbrushed burgundy leggings

5 total reviews

Regular price £63.00 GBP

Regular price Sale price £63.00 GBP
Unit price per
Pilates leggings set

Pilates leggings set

3 total reviews

Regular price £85.00 GBP

Regular price ~~£0.00 GBP~~ Sale price £85.00 GBP
Unit price per
Midnight leggings

Midnight leggings

7 total reviews

Regular price £57.00 GBP

Regular price Sale price £57.00 GBP
Unit price per
Second skin black leggings

Second skin black leggings

13 total reviews

Regular price £57.00 GBP

Regular price ~~£0.00 GBP~~ Sale price £57.00 GBP
Unit price per
Ribbed collection

Ribbed collection

Regular price From £39.00 GBP

Regular price Sale price From £39.00 GBP
Unit price per
Matching set

Matching set

Regular price £87.00 GBP

Regular price Sale price £87.00 GBP
Unit price per
Ribbed set off white

Ribbed set off white

Regular price £81.00 GBP

Regular price Sale price £81.00 GBP
Unit price per

Sports bra

Butterfly sports bra

Sale

Butterfly sports bra

Regular price £29.00 GBP

Regular price ~~£41.00 GBP~~ Sale price £29.00 GBP
Unit price per

Sale
Adjustable sports bra high support

Adjustable sports bra high support

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per
Ribbed collection

Ribbed collection

Regular price From £39.00 GBP

Regular price Sale price From £39.00 GBP
Unit price per
White sports bra

White sports bra

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per
Adjustable sports bra

Sale

Adjustable sports bra

Regular price £26.00 GBP

Regular price ~~£39.00 GBP~~ Sale price £26.00 GBP
Unit price per

Sale
High support sports bra

High support sports bra

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per
Zero feel sports bra

Zero feel sports bra

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per
Ivory sports bra

Ivory sports bra

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per
High support sports bra

High support sports bra

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per
Zero feel sports bra

Zero feel sports bra

Regular price £39.00 GBP

Regular price Sale price £39.00 GBP
Unit price per

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Let customers speak for us

from 270 reviews

Good quality socks

These socks fit perfectly the grip is excellent and I love the look

Natalie Day

03/21/2025

Pilates and yoga grip socks

Pilates and yoga grip socks

Love this set!

The PINK color is spot on and super flattering! These were squat proof and moisture wicking. Im 5'1 and 115lbs and a small fit great. I am small chested and the top did not disappoint! You need this added to your wardrobe.

Miranda Geist

02/27/2025

Flared leggings and sports bra set

Flared leggings and sports bra set

Delighted

Soft and comfortable very elegant perfect outfit for spring motivation

Sarah London

02/19/2025

Scallop cross back matching set

Scallop cross back matching set

My 3rd scallop set well 😂

Not to say I’m obsessed but my husband is loving it too chocolate is my favourite

Sheyla

02/19/2025

Scallop cross back matching set

Scallop cross back matching set

Adorabile 😍

Just stunning love my blueberry set it holds perfect beautiful colour

Maymay

02/19/2025

Scallop cross back matching set

Scallop cross back matching set

I need more colours

The airbrush style material is just gorgeous, and the burgundy colour is the most beautiful colour I’ve seen. In love with this set!

josephine sterakides

02/04/2025

Pilates leggings set

Pilates leggings set

So beautiful

Such a lovely set! Perfect for Pilates and gym and aerial! The chocolate is such a gorgeous warm colour!

josephine sterakides

02/04/2025

Pilates leggings set

Pilates leggings set

Great for Pilates and aerial

Lovely leggings, feel and look amazing and are really good for silks as the airbrushed fabric gives a little more grip

josephine sterakides

02/04/2025

High Waisted Airbrush Leggings Black

High Waisted Airbrush Leggings Black

Gorgeous

Have this top in all colours! Just gorgeous, always get compliments when I wear it!

josephine sterakides

02/04/2025

Scallop crop top

Scallop crop top

Pilates socks

Love these socks, have these in multiple colours, use them for Pilates and aerial, can’t wait until they are back in stock

josephine sterakides

02/04/2025

Pilates and yoga grip socks

Pilates and yoga grip socks

Elegante di buona qualita

Subito ordinato un altro colore. Molto bello

Alessia

01/31/2025

Scallop pilates set

Scallop pilates set

Butter soft, great support and flattering too

Couldn't b happier with this Matching Set - the high waist on the leggings flatters, while the crop of the top lists nicely - Im no spring chicken, at 48, but the set is hugely flattering on - supportive in all the right places, and excellent fit and ever so soft. I actually bought several 'sets' thinking I would keep just one... Ive kept them all!!! LOVE

Sarah Burgess

01/29/2025

Stunning 🤩

Honestly, the price looked too good to be true, but this set exceeded my expectations! The quality is amazing, and it fits so nicely. It took about 10 days to arrive from the UK to Singapore, but it was absolutely worth the wait. Love it!

Sarah Clark

01/28/2025

Flared leggings and sports bra set

Flared leggings and sports bra set

So far so good

These soft leggings are amazing! The quality is top-notch, with a perfect blend of stretch and comfort. They feel super smooth and stay in place during workouts or casual wear. Highly recommend! Quick delivery

Luisa

01/01/2025

Pilates leggings set

Pilates leggings set

Comfy

Comfy and stylish. Colours are more beautiful

Tanya

11/12/2024

Anti-slip grip socks for yoga or pilates

Anti-slip grip socks for yoga or pilates