Our sneakers follow UK sizing, crafted to offer day-long comfort and a naturally balanced fit.

For most styles, we recommend choosing your usual UK size, as each pair is designed to feel soft, supportive, and effortlessly comfortable from the very first wear.

If you usually wear EU or US sizes, please refer to our conversion chart available on each product page to find your perfect UK equivalent.

If you prefer a slightly roomier feel or typically wear thicker socks, we suggest going up by half a size for optimal comfort.

Our clothing and accessories follow a classic, slightly tailored fit inspired by timeless old-money elegance.

If you’re between sizes, we recommend choosing the larger one, ensuring freedom of movement while maintaining a refined silhouette.

To find your ideal fit, please check the size guide with measurements in CM / INCHES provided for each product. These are precise and will help you select your size with confidence.

You can contact us through support@sinci.com or our contact page! We will be happy to assist you.

We have a broad selection of products and to make sure we can offer you fair pricing and remain our Dress With Class - For Less slogan, we source our fabrics and materials on a global scale as each fabric might be cheaper in a different market.

We accept all major secure payment methods through Stripe and PayPal, ensuring a smooth and protected checkout experience wherever you are.

You can pay using:

• All major credit & debit cards (Visa, MasterCard, American Express, etc.)
  
• PayPal
  
• Apple Pay
  
• Google Pay
  
• Klarna (Pay Later & Pay in 3 available for select regions)
  
• Shop Pay
  

Every transaction is encrypted and processed through certified SSL security, so your payment details remain fully protected at all times.