Thank you so much for your feedback — we truly appreciate you taking the time to share your thoughts.
To provide some transparency, every Bombay Hair product goes through extensive research and development before launch. During our testing, we trialed both zipper and envelope-style pillowcases. While zippers were more cost-effective due to using less mulberry silk, our team found that they often caused discomfort and irritation for participants. Over time, zippers also led to damage along the seams, reducing the overall lifespan of the pillowcase.
Ultimately, we chose the envelope style to prioritize long-term comfort and durability. That said, we take all customer feedback seriously and are actively exploring ways to improve the design — including the possibility of a zipper or an alternative solution to help reduce slippage without compromising comfort or quality.
Thank you again for your input — it truly helps us continue to grow and improve. We hope this gives you some insight into the current product design and the care that goes into every Bombay Hair item!