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Kate & Simon London

ELEVATED WARDROBE ESSENTIALS

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CRAFTED FOR WOMEN

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CELEBRATING A DECADE OF STYLE

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LIGHTWEIGHT SUMMER ESSENTIALS

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The Summer Edit

At Kate & Simon London, we’re already introducing our newest Summer Collection with carefully selected pieces designed for effortless style, comfort, and quality. Our collections are inspired by timeless London fashion and modern everyday elegance, so you can always discover refined looks that feel both current and wearable.

From airy linen essentials to sophisticated seasonal pieces, every item is selected with attention to detail, fit, and quality allowing you to move confidently into the new season while staying ahead of upcoming trends.

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MOST LOVED COLLECTIONS

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Our Story

At Kate & Simon London, everything began with a shared love for fashion, creativity, and timeless style. Kate and Simon first met during their student years while studying Fashion Design & Business.

Simon grew up in the Netherlands, while Kate was raised in the United Kingdom. Despite their different backgrounds, they quickly connected through a mutual appreciation for elegant fashion, travel, and modern European living.

What started as a friendship slowly grew into a life built together. After years of travelling between London and the Netherlands, they decided to create a brand that reflected their own vision of women’s fashion effortless, refined, and made to be worn every day.

Today, more than 12 years later, with two wonderful children and years of experience within the fashion industry, Kate & Simon London has become a natural extension of who they are and what they believe in.

Inspired by the understated elegance of London style and the relaxed simplicity of modern European fashion, every collection is carefully curated with attention to quality, comfort, flattering fits, and timeless silhouettes.

For Kate and Simon, fashion is not about following every trend. It is about creating pieces that feel beautiful, comfortable, and easy to wear pieces that naturally become part of your everyday life.

Their goal has always remained simple: helping women feel confident, feminine, and comfortable in their own style.

Thank you for being part of our story.

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Unleash your style potentia

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Push limits. Break boundaries.

Discover performance gear designed to move with you

Everyday seamless crop tank

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Run

Sit comfortably, feel at home!

Gym

Sit comfortably, feel at home!

Pilates

Sit comfortably, feel at home!

Swimwear

Sit comfortably, feel at home!

Casual

Sit comfortably, feel at home!

Flexibility
Confidence
Always
Flexibility
Confidence
Always

Born to move, designed to inspire

Our mission is to empower you with high-performance activewear that blends style, comfort, and innovation

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Our newest must - haves

Attack your next workout wearing black and red the power

Seamless Shorts - Green
Seamless Shorts - Green

Sustainable activewear

Eco-friendly, high-performance gear made from recycled materials.

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Performance Fabric

Breathable, sweat-wicking, and
ultra-lightweight to keep you fresh and dry.

Performance Fabric

Breathable, sweat-wicking, and
ultra-lightweight to keep you fresh and dry.

Reinforced Stitching

Breathable, sweat-wicking, and
ultra-lightweight to keep you fresh and dry.

Reinforced Stitching

Breathable, sweat-wicking, and
ultra-lightweight to keep you fresh and dry.

Trendy Cropped Design

Offers a fashionable, slightly cropped cut that pairs well with high-waisted leggings or shorts.

Trendy Cropped Design

Offers a fashionable, slightly cropped cut that pairs well with high-waisted leggings or shorts.

🔥 Bold & Motivational

Move strong. feel stronger.

Engineered for high-performance movement, designed with comfort that lasts all day — wherever your goals take you.

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🔥 Energy & Focus

Push harder. last longer.

Designed for athletes and go-getters, built with breathable fabrics that keep you cool and focused — from warm-up to the final rep.

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🔥 Comfort & Breathability

Move freely. Feel unstoppable.

Engineered for every motion, our activewear blends flexibility and durability — giving you the confidence to move without limits.

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Loved by our community

See what our customers are saying about our products

Super Comfortable!

Wearing this set feels just like being at home – super comfy! No matter how much I move around, it never feels tight.

Anna

Sporty & Stylish

I wear this set to class then head straight to the gym, no outfit change. Comfy for workouts yet stylish enough for hanging out

Nicole

Breathable & Confident

Even after heavy cardio, the outfit stays breathable. Squats or planks? No worries about losing shape – still confident

Tramy

Premium but Affordable

Great price for students yet really good quality. I bought one set and now I just want them in more colors too.

Hannah

Chill While Running

This set makes me feel more confident. Lightweight, stretchy, and still super chill even after outdoor runs and workouts.

Vivian

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