45-day trial offer

At Female Engineering we offer a free trial on our period-proof underwear and swimwear, which is valid for 45 days from the day you receive the order. During that time, you can try, wear and wash the product. 

If you're not satisfied, you can get a full refund. Just contact us at hello@femaleengineering-official.com within 45 days and let us know the order and item number, as well as your reason for getting a refund. Our customer service will help you with the refund. You can keep the product: no need to return it. 

The refund will be made within 14 days from the day you contact us. 

The trial offer only applies to your first purchase of one (1) period panty from Female Engineering.

Period proof underwear High waist