Prana Onepiece - Sienna
FIGURE FLATTERING
Designed to hug your curves and flatter your waist. The Prana Onepiece features medium bum coverage and an adjustable tie-back. Made with our buttery soft, recycled fabric.
£2.95 UK shipping or FREE over £99.
We ship worldwide. Rates are calculated at checkout.
Free UK delivery over £120
Easy returns & exchanges
24/7 Support
Made from regenerated ocean plastic
Frequently Asked Questions
Please check our size chart and size gallery to help you find your size. For personalised help, chat to an expert by emailing
Orders can be exchanged if they don’t fit quite right!
Our ECONYL® fabric is created from regenerated ocean plastic, such as abandoned fishing nets and industrial plastic. Not only does this help to remove waste from the oceans, but it also reduces the amount of new materials produced. Our recycled fabric reduces the global warming impact of nylon by up to 90% compared with the material from oil.
Please email us at support@instantswimwear.com to chat to an expert. We aim to respond within 48 hours or less!
Question not listed?
Full FAQs page
Yes! We ship worldwide, and you'll be able to track your order to your door.
We offer £2.95 tracked shipping for all UK orders. For international orders, rates will be calculated at checkout.
Yes! We have a super easy returns and exchange process, using our online returns portal. All returns & exchanges must be made within 14 days.
For EU orders under €150, we cover the duty cost for you!
For orders to Australia & US, there should not be any duties to pay.