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Collection: Products

Second skin black leggings

Second skin black leggings

13 total reviews

Regular price ¥11,947 JPY

Regular price Sale price ¥11,947 JPY
Unit price per
Set bundle second skin

Set bundle second skin

7 total reviews

Regular price ¥17,816 JPY

Regular price Sale price ¥17,816 JPY
Unit price per
Summer high quality socks

Summer high quality socks

Regular price ¥1,258 JPY

Regular price Sale price ¥1,258 JPY
Unit price per
Taupe leggings and sports bra

Taupe leggings and sports bra

1 total reviews

Regular price ¥17,397 JPY

Regular price Sale price ¥17,397 JPY
Unit price per
Tennis dress 🎾

Sale

Tennis dress 🎾

Regular price ¥8,803 JPY

Regular price ~~¥13,205 JPY~~ Sale price ¥8,803 JPY
Unit price per

Sale
The Muse jumpsuit

The Muse jumpsuit

11 total reviews

Regular price ¥19,073 JPY

Regular price ~~¥0 JPY~~ Sale price ¥19,073 JPY
Unit price per
Two pieces summer essential

Two pieces summer essential

1 total reviews

Regular price ¥13,205 JPY

Regular price Sale price ¥13,205 JPY
Unit price per
Two pieces summer essential

Two pieces summer essential

Regular price ¥13,205 JPY

Regular price Sale price ¥13,205 JPY
Unit price per
Water bottle stainless still

Water bottle stainless still

Regular price ¥5,238 JPY

Regular price Sale price ¥5,238 JPY
Unit price per
White sports bra

White sports bra

8 total reviews

Regular price ¥8,174 JPY

Regular price Sale price ¥8,174 JPY
Unit price per
White sports bra

Sold out

White sports bra

Regular price ¥6,707 JPY

Regular price ~~¥0 JPY~~ Sale price ¥6,707 JPY
Unit price per

Sold out
White tennis dress

White tennis dress

Regular price ¥12,995 JPY

Regular price Sale price ¥12,995 JPY
Unit price per
White Tennis dress 🎾

White Tennis dress 🎾

Regular price ¥14,253 JPY

Regular price Sale price ¥14,253 JPY
Unit price per
Women fitness zip jacket

Women fitness zip jacket

Regular price ¥10,270 JPY

Regular price Sale price ¥10,270 JPY
Unit price per
Women’s Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

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

1 total reviews

Regular price ¥8,174 JPY

Regular price Sale price ¥8,174 JPY
Unit price per
Zero feel blueberry set

Sale

Zero feel blueberry set

Regular price ¥14,462 JPY

Regular price ~~¥17,397 JPY~~ Sale price ¥14,462 JPY
Unit price per

Sale

Zero feel set

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

Flared unitard

Flared unitard

Sold out

Flared unitard

¥18,654 JPY

¥18,654 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