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

80% OFF 🔊 Use code THANKYOU80 for min £100 spend. Everything must go, no restocks !!!

As Belsize Activewear is closing down, all items are final sale. We do not accept returns, exchanges, or refunds. Our warehouse is closing and all stock is being cleared. Please review your order carefully before purchasing. Thank you for your support.

Plush holiday set Skort and sports bra

Plush holiday set Skort and sports bra

Sale

Plush holiday set Skort and sports bra

¥13,990 JPY

~~¥19,764 JPY~~ ¥13,990 JPY

Sale

Discover our best seller now 80% off

Embrace warm colour palettes for the new season. Think winter outfits made...

Discover our best seller now 80% off

Sports Bra

The Softest Sports Bra ensures unbeatable comfort and support for your athletic...

Sports Bra

80% off everything code THANKYOU80

Pilates leggings set super soft

Pilates leggings set super soft

6 total reviews

Regular price ¥19,320 JPY

Regular price Sale price ¥19,320 JPY
Unit price per
Pilates and yoga grip socks

Pilates and yoga grip socks

1 total reviews

Regular price ¥2,885 JPY

Regular price Sale price ¥2,885 JPY
Unit price per
Scallop pilates set

Sold out

Scallop pilates set

6 total reviews

Regular price ¥19,320 JPY

Regular price Sale price ¥19,320 JPY
Unit price per

Sold out
Beige leggings second skin

Beige leggings second skin

Regular price ¥12,436 JPY

Regular price Sale price ¥12,436 JPY
Unit price per
High support sports bra

High support sports bra

4 total reviews

Regular price ¥8,661 JPY

Regular price Sale price ¥8,661 JPY
Unit price per
Flared leggings and sports bra set

Flared leggings and sports bra set

3 total reviews

Regular price ¥19,098 JPY

Regular price Sale price ¥19,098 JPY
Unit price per
Women’s Crop Top & Leggings Pilates Set

Women’s Crop Top & Leggings Pilates Set

7 total reviews

Regular price From ¥11,770 JPY

Regular price Sale price From ¥11,770 JPY
Unit price per
Zero feel leggings Ivory

Zero feel leggings Ivory

13 total reviews

Regular price ¥12,436 JPY

Regular price Sale price ¥12,436 JPY
Unit price per
Black leopard sports bra

Black leopard sports bra

3 total reviews

Regular price ¥8,661 JPY

Regular price Sale price ¥8,661 JPY
Unit price per
Adjustable sports bra

Adjustable sports bra

Regular price ¥8,661 JPY

Regular price ~~¥5,774 JPY~~ Sale price ¥8,661 JPY
Unit price per
Anti-slip grip socks for yoga or pilates

Anti-slip grip socks for yoga or pilates

1 total reviews

Regular price ¥2,885 JPY

Regular price Sale price ¥2,885 JPY
Unit price per
Crop top navy blue

Sold out

Crop top navy blue

1 total reviews

Regular price ¥7,550 JPY

Regular price Sale price ¥7,550 JPY
Unit price per

Sold out
Black elegant jumpsuit

Sold out

Black elegant jumpsuit

3 total reviews

Regular price ¥11,548 JPY

Regular price ~~¥19,764 JPY~~ Sale price ¥11,548 JPY
Unit price per

Sold out
Cloud crop top padded

Cloud crop top padded

Regular price ¥8,661 JPY

Regular price Sale price ¥8,661 JPY
Unit price per
Elegant crop top

Elegant crop top

Regular price ¥8,439 JPY

Regular price Sale price ¥8,439 JPY
Unit price per
Kids sports bra

Kids sports bra

Regular price ¥4,219 JPY

Regular price Sale price ¥4,219 JPY
Unit price per

1 16

PREMIUM 80%OFF CHOICE

Summer shorts running

Sold out

Summer shorts running

Regular price ¥7,106 JPY

Regular price Sale price ¥7,106 JPY
Unit price per

Sold out
Women’s Crop Top & Leggings Pilates Set

Women’s Crop Top & Leggings Pilates Set

7 total reviews

Regular price From ¥11,770 JPY

Regular price Sale price From ¥11,770 JPY
Unit price per
Beige leggings second skin

Beige leggings second skin

Regular price ¥12,436 JPY

Regular price Sale price ¥12,436 JPY
Unit price per
Midnight leggings

Midnight leggings

7 total reviews

Regular price ¥12,658 JPY

Regular price Sale price ¥12,658 JPY
Unit price per
Ribbed collection

Ribbed collection

Regular price From ¥8,661 JPY

Regular price Sale price From ¥8,661 JPY
Unit price per
High waisted leggings

High waisted leggings

9 total reviews

Regular price ¥12,436 JPY

Regular price Sale price ¥12,436 JPY
Unit price per
Pilates leggings and sports bra

Pilates leggings and sports bra

1 total reviews

Regular price ¥18,432 JPY

Regular price Sale price ¥18,432 JPY
Unit price per

High support sports bra

¥8,661 JPY

¥8,661 JPY

Sale Sold out

Tax included. Shipping calculated at checkout.

Size S M L

Product variants

Quantity

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Belsize Activewear

Flowline sports bra cobalt blue

¥8,881 JPY

¥8,881 JPY

Sale Sold out

Tax included. Shipping calculated at checkout.

Size Small UK 6 - 8 Medium UK 8-10 Large 10-12

Product variants

Quantity

View full details

Court collection

Summer shorts running

Sold out

Summer shorts running

Regular price ¥7,106 JPY

Regular price Sale price ¥7,106 JPY
Unit price per

Sold out
Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

Sold out

Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

Regular price ¥8,661 JPY

Regular price Sale price ¥8,661 JPY
Unit price per

Sold out
Plush holiday set Skort and sports bra

Sale

Plush holiday set Skort and sports bra

Regular price ¥13,990 JPY

Regular price ~~¥19,764 JPY~~ Sale price ¥13,990 JPY
Unit price per

Sale

Let customers speak for us

from 286 reviews

The perfect Pilates socks

A great fit and so comfortable.
Stay in place during a class.
Highly recommend.

Tricia Myatt

12/09/2025

Pilates and yoga grip socks shorter

Pilates and yoga grip socks shorter

Gorgeous soft pink

Obsessed with this sports bra love all colours but soft pink is like eating marshmallows.

Angela B

11/21/2025

Flowline sports bra cobalt blue

Flowline sports bra cobalt blue

Burgundy set

So pleased with this set. The perfect colour for autumn/winter. Beautiful burgundy colour. Can't wait to wear it.

Channelle Myers

11/10/2025

Pilates leggings set super soft

Pilates leggings set super soft

Leggings

First purchase from Belsize of leggings for Pilates. Great fit and so pleased with quality. Will definitely purchase again and recommend.

Lynne Smith

10/27/2025

Scalloped leggings

Scalloped leggings

So beautiful to move in

I love this jumpsuit so much. It feels like a second skin when on. The colour is beautiful, too. I especially loved the scallop-crossed back. It's a definite must-buy in any colour.

Channelle Myers

10/17/2025

Scalloped jumpsuit

Scalloped jumpsuit

Beautiful unique set

Don’t hesitate to buy. Beautiful sets. Sculpt the body nicely. Love them.

Channelle Myers

09/19/2025

Scallop cross back matching set

Scallop cross back matching set

As a yoga teacher, I wash my activewear every single day. This is the only bra that hasn’t lost its color or shape absolutely amazing

Courtney

09/17/2025

White sports bra

White sports bra

Great support

Top of excellent quality leggings are like second skin

A****ra

09/17/2025

Pilates leggings set super soft

Pilates leggings set super soft

Second skin

Like a second skin probably the most comfortable leggings

Ana

09/17/2025

Pilates leggings set super soft

Pilates leggings set super soft

Stunning

Beautiful colour perfect fit. I wish I knew earlier for Belsize. Best price

Jordan

09/17/2025

Flared leggings and sports bra set

Flared leggings and sports bra set

My second colour

Bought fist set in brown colour it hold my tummy extremely well, absolutely love coral 🪸 colour. Temptation for the black set 👀

Jady

09/17/2025

High support sports bra

High support sports bra

The best gym set

I first bought only pocket leggings after wearing them daily they are still the same. I have treated my self with full set. Very good quality

Tamara

09/17/2025

Pocket leggings & sports bra

Pocket leggings & sports bra

Absolutely amazing

Love the fabric but finally pockets that hold my phone. Very comfortable. I wish they have in more colours.

Tamara

09/17/2025

Pocket leggings

Pocket leggings

Unbelievable love it

After giving birth, I honestly thought I’d never feel confident in leggings again but this Scallop Set holds my mummy tummy in beautifully! 💖 The quality is amazing, and the sports bra gives strong support even though it’s a one shoulder design. I’ve already ordered another colour before it sells out again!

Stacey

09/09/2025

Scallop pilates set

Scallop pilates set

Wearing it every day, everywhere! Obsessed

I paired it with the pink padded top and honestly felt like a total tennis babe! The fit is super flattering, not too short, and moves perfectly on the court. The fabric is soft but supportive, I’ve worn it for both tennis and running it’s that cute. Definitely a must-have set! 🎾💗 We’ll done Belsize

Harper.S

06/08/2025

Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal