• Our unisex pieces are available in sizes XXS–XXL.
• Women: Take your usual size for a relaxed yet balanced fit.
• Men: Refer to our Size Guide and the model’s measurements on each product page.
• Men styles may run slightly small. If between sizes, we recommend sizing up.
• Review Model sizes for good estimate for your fit.
• Reviewing the Size Guide and fit notes and measurements ensures the best possible fit.

Yes. Sin Of Hearts offers worldwide shipping with trusted courier partners. Delivery costs and times are calculated at checkout. You’ll receive tracking details once your order has been dispatched.

• Orders are typically processed within 1–3 business days.
• Domestic: 2–4 business day. More accurate estimate at checkout.
• International: More accurate estimate at checkout.7-10 business days
• During collection launches or high-volume periods, dispatch times may be slightly extended

ALL SALES ARE FINAL. EXCHANGE ONLY.

Our pieces are produced in limited quantities and are therefore exclusive pieces.

We’re happy to offer exchanges within 10 days of delivery, including a different size or another item of equal or greater value. We’re always happy to help you find the right fit and make sure you love your Sin of Hearts piece.

Domestic (USA)

• Returns and exchanges are accepted within 7 days of delivery.
  
• Items must be unworn, unwashed, unaltered, and have all original tags attached.
  
• Original shipping costs are non-refundable.
  
• Refunds are issued to the original form of payment.
  
• Return packages should be sent to the return address below.

International Orders

• No exchanges.
  
• Customers may return an item for a refund only and place a new order separately.
  
• Returns must be initiated within 7 days of delivery.
  
• A $20 return processing fee applies to all international returns.
  
• Customers are responsible for return shipping plus any customs charges or duties incurred.
  
• Customer may place a new order at any time.

TO START A RETURN / EXCHANGE

*Important:* Sale items are final sale and cannot be returned. Exchanges are accepted only for items of equal or greater value. Items must be unworn with all original tags attached. Please email partners@sinofhearts.com for exchange approval and include a photo of the unworn item before sending it back. Items returned without prior approval or showing signs of wear will not be accepted.

Pack your items securely and ship them to the return address below using a reliable, trackable service.

NJ handled c/o Sin of Hearts
310 Paterson Plank Rd, Carlstadt, NJ 07072. United States

Important:
We reserve the right to refuse a return based on item condition. If a return is rejected, the item will be shipped back to the customer at their own expense.

Yes. All prices are final at the time of purchase. Sin Of Hearts does not offer price adjustments, price matching, or retroactive discounts on past orders.

Once an order is placed, it cannot be modified. Please ensure all details, sizes, and items are correct before completing your purchase.

Sin Of Hearts pieces are made with care and intention across the world. All garments are made with love in the USA, China, and Türkiye, with production expanding to Portugal and Italy in the near future.

We partner only with ateliers that share our dedication to quality, ethics, and refined construction.

We primarily work with premium natural and innovative fabrics, including organic cotton, Italian wool, silk blends, and recycled fibers. Each material is chosen for its texture, structure, and longevity, balancing modern design with everyday functionality.

We recommend gentle washing or dry cleaning depending on the fabric. Avoid tumble drying and harsh detergents to maintain garment integrity.

At this time, Sin Of Hearts is available exclusively online. Follow us on Instagram for updates on upcoming store openings and news: @sin.of.hearts

For direct support, press the help/support button on any page of our website. Assistance is available Monday–Friday, 9AM–6PM (local time).