SUMU&SU is an online modest fashion brand based in London, aiming to provide customers with dainty and romantic clothes for any occasion. The brand was founded by two sisters with a passion for designing, fashion, styling and a deep love for all things pink and cute. Together, we both worked extremely hard to produce one of a kind pieces, made with excellent quality fabric in the most beautiful colour palette to ensure you that no other shop sells the pieces we sell. All of our fabrics are sourced from reliable and sustainable sources and the finished pieces are handcrafted with care in the UK. 


We hope you love our pieces as much as we loved designing them!


If you have any questions, we would love to hear from you! Please feel free to send us an email and we will get back to you as soon as possible. 

Thank you for your message, please allow 3 working days for us to respond


We are currently no longer accepting exchanges and returns on all products. Please ensure all details are checked thoroughly before confirming your purchase. We are happy to provide videos, sizing measurements and more pictures of your chosen products before your purchase. 



All SUMU&SU products are produced by hand so unfortunately small defects can sometimes occur. If in an instance any items are received faulty, please return your package back to us within 7 days of receipt for a replacement. Please ensure to get in touch before returning any items back to us within 24 hours of receiving your order. You can do this by emailing us at sumuandsu@outlook.com with the details of your order and images of the fault and a member of our team will get back to you.


Please refrain from using any items after finding a fault, as we may not be able to provide a replacement once the product has been used. We will cover standard shipping charges incurred in the return of a faulty product. Please note, We will not cover any additional services you wish you to use.


Please note, items with small marks or stains are not seen as faulty. This is simply due to bulk storage facilities of our fabric suppliers. We advise buyers to wash products before wearing, and so these marks will easily be washed off. Hand wash is advised on all products.