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Collection: Products

High support sports bra

High support sports bra

Regular price ¥8,190 JPY

Regular price Sale price ¥8,190 JPY
Unit price per
High Waisted Airbrush Leggings Black

High Waisted Airbrush Leggings Black

1 total reviews

Regular price ¥13,231 JPY

Regular price Sale price ¥13,231 JPY
Unit price per
High waisted leggings

High waisted leggings

9 total reviews

Regular price ¥11,761 JPY

Regular price Sale price ¥11,761 JPY
Unit price per
Kids leggings blue

Kids leggings blue

Regular price ¥4,198 JPY

Regular price Sale price ¥4,198 JPY
Unit price per
Kids sports bra

Kids sports bra

Regular price ¥3,990 JPY

Regular price Sale price ¥3,990 JPY
Unit price per
Kids tennis skirt with shorts and pocket

Sold out

Kids tennis skirt with shorts and pocket

Regular price ¥0 JPY

Regular price Sale price ¥0 JPY
Unit price per

Sold out
Lightweight Cropped Sports Top

Lightweight Cropped Sports Top

Regular price ¥7,980 JPY

Regular price Sale price ¥7,980 JPY
Unit price per
Luna collection top and leggings

Luna collection top and leggings

7 total reviews

Regular price From ¥11,131 JPY

Regular price Sale price From ¥11,131 JPY
Unit price per
Luna short sleeves pilates set

Luna short sleeves pilates set

Regular price ¥18,271 JPY

Regular price Sale price ¥18,271 JPY
Unit price per
Midnight leggings

Midnight leggings

7 total reviews

Regular price ¥11,971 JPY

Regular price Sale price ¥11,971 JPY
Unit price per
Mulberry leggings and sports bra

Sale

Mulberry leggings and sports bra

1 total reviews

Regular price ¥14,491 JPY

Regular price ~~¥17,431 JPY~~ Sale price ¥14,491 JPY
Unit price per

Sale
Navy blue crop top

Navy blue crop top

1 total reviews

Regular price ¥6,720 JPY

Regular price ~~¥0 JPY~~ Sale price ¥6,720 JPY
Unit price per
Navy blue tennis dress

Navy blue tennis dress

Regular price ¥13,021 JPY

Regular price Sale price ¥13,021 JPY
Unit price per
Pilates and yoga grip socks

Pilates and yoga grip socks

1 total reviews

Regular price ¥2,728 JPY

Regular price Sale price ¥2,728 JPY
Unit price per
Pilates and yoga grip socks

Pilates and yoga grip socks

1 total reviews

Regular price ¥2,728 JPY

Regular price ~~¥0 JPY~~ Sale price ¥2,728 JPY
Unit price per
Pilates and yoga grip socks shorter

Pilates and yoga grip socks shorter

1 total reviews

Regular price ¥2,625 JPY

Regular price Sale price ¥2,625 JPY
Unit price per

Zero feel set

Elevate Your Style with Fresh Arrivals from Our Just Landed Collection!

Flared unitard

Flared unitard

Sold out

Flared unitard

¥18,691 JPY

¥18,691 JPY

Sold out

Clearance Sale

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Clearance Sale

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Let customers speak for us

from 285 reviews

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

Flowline sports bra

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

Pilates leggings set

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

Dusty pink leggings

Dusty pink 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

Pilates leggings set

Second skin

Like a second skin probably the most comfortable leggings

Ana

09/17/2025

Pilates leggings set

Pilates leggings set

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

Autumn Shades You’ll Live In

Autumn Shades You’ll Live In

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

Women’s Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

Women’s Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

Gorgeous set

I have the black and aubergine and I love them both and love to interchange the tops and bottoms.

Laura

05/23/2025

Scallop pilates set

Scallop pilates set