Womens String Bikini Bottom
Reduce your microplastic exposure with these GOTS certified Organic Cotton Bikinis.
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MATERIALS AND INNOVATION
- GOTS certified organic cotton swimwear.
- 98% organic cotton, 2% lycra blend for a flexible fit that holds its shape when wet. The lycra is free from PFAS and BPA.
- Dramatically reduced microplastic shedding compared to conventional polyester or nylon swimwear, which shed tiny plastic fibres with every wear and wash.
- UPF 50+ sun protection built into the density of the weave — no chemical coating, no synthetic spray.
- Comes with a cotton drawstring bag.
- Made in India.
Reduce your microplastic exposure with these GOTS certified Organic Cotton Bikinis.
CARE INSTRUCTIONS
• Rinse in fresh water after every swim. Chlorine and salt water will degrade the fabric over time.
• Machine wash cold only.
• Line dry or tumble dry on low heat.
DELIVERY AND RETURNS
Delivery and Returns
UK Standard Shipping - Free
Deliveries take 2 to 4 working days and are delivered between 8am – 9pm (excludes weekends & public holidays).
UK Next Day - £9.80
Order before 2pm Mon-Fri to receive your order tomorrow. Orders made after 2pm will be delivered the day after (excludes Sundays & public holidays). Deliveries are made anytime between 8am – 9pm. Free on all orders £150 and over.
EU
EU Standard Delivery - £18
Deliveries usually take 3 to 5 working days and are delivered between 8am – 9pm (excludes weekends & public holidays). Free on all orders £180 and over, which are subject to additional delivery charges calculated at checkout. Customs charges may be applicable following Brexit and customers are responsible for all customs charges incurred.
International
International standard shipping - £35
Delivery time 3-11 working days (excludes weekends & public holidays). International shipping is free on all orders above £350 (*exclusions apply to large items, see below). BEFORE ORDERING PLEASE CHECK EXCHANGE RATES AND COUNTRY SPECIFIC IMPORT COSTS. It is the responsibility of the customer to pay any import duty and tax charges if incurred.
USA
US Shipping - Free
Deliveries take 3 to 7 working days and are delivered between 8am – 9pm (excludes Weekends & Public Holidays).
US Express Shipping - $30
Order before 2pm Mon-Fri for same day dispatch delivery. Orders made after 2pm will be delivered the day after (excludes Sundays & Public Holidays). Deliveries are made anytime between 8am – 9pm. Express delivery can take anything between 1-5 business days.
Womens Swimwear Sizing
Our swimwear is stretchy and generous. We recommend measuring from shoulder to bottom and checking the chart below.
| Standard size | UK Dress Size | US Dress Size | EU Dress Size |
| S | 6 - 10 | 2 - 6 | 34 - 38 |
|
M |
12 - 14 | 8 - 10 | 40 - 42 |
| L |
14 - 18 |
10 - 14 | 42 - 46 |
UK and US cup size chart by style
|
Style
|
UK sizes | US sizes | ||||
| S | M | L | S | M | L | |
| String Bikini | AA-B | B-D | DD-F | AA-B | B-D | DD-G |
| Bandeau Bikini | AA-C | C-E | n/a | AA-C | C-DDD | n/a |
| Bandeau Twist Bikini | A-C | C-E | E-FF | A-C | C-DDD | DDD-H |
| Halterneck Bikini | C-DD | E-FF | G-HH | C-DD | DDD-H | I-L |
| Swimming Costume | AA-B | B-E | n/a | AA-B | B-DDD | n/a |
| Support Swimming Costume | D-E | F-FF | FF-HH | D-DDD | G-H | H-L |
| Scoop Neck Costume | B-E | F-G | n/a | B-DDD | G-I | n/a |
Applies to: String Bikini Top & Bottom, Bandeau Bikini Top & Bottom, Halterneck Bikini Top, High Rise Bikini Bottom, Support Swimming Costume. Bandeau Top & Bottom come in S and M only.
Cultivated for over 7,000 years across the Indus Valley, Mesoamerica and West Africa — one of the oldest farmed fibres on earth. Organic cotton is grown without synthetic pesticides, herbicides or fertilisers, in soil that is independently monitored and tested. It is certified under the Global Organic Textile Standard (GOTS), the most rigorous independent textile certification available, which covers the entire supply chain from field to finished garment.
Against skin, it breathes. It softens with every wash. It does not trap heat or hold synthetic chemicals against the body. In water, it does not shed plastic fibres. What it is made from, and how it is grown, is inseparable from what it feels like to wear.
UPF 50+ is the highest available UV protection rating, blocking over 98% of ultraviolet radiation. In most swimwear, this rating is achieved through chemical coatings or synthetic spray-on finishes applied to the fabric surface — treatments that can degrade with use, wash out over time, and add another layer of chemistry to what sits against skin in the sun.
Earthcove achieves UPF 50+ differently. The protection is built into the fabric itself — through the density and weight of the organic cotton knit, which leaves insufficient space for UV to pass through. No coating. No spray. No treatment that fades. The fabric that gives sun protection is the same fabric that touches the body.
Independently tested by Intertek.
Two percent of each Earthcove garment is lycra — the element that gives the fabric its stretch, its shape retention, and its ability to move with the body in water without losing its fit. It is the minimum required for a swimwear fabric to perform properly across seasons of use.
The lycra used in Earthcove is free from PFAS and BPA. It contains no perfluorinated compounds and no bisphenol A — two of the most commonly cited chemical concerns in synthetic textiles.
Earthcove swimwear is not plastic-free. The 2% lycra means it is not, and we will not claim otherwise. What it is: dramatically less plastic than the 80–100% synthetic fabrics that make up most swimwear on the market. Less against the body. Less into the water.
Earthcove prints are screen printed using GOTS compliant, water-based ink. PVC-free. Phthalate-free.
Conventional screen printing applies colour as a plastic layer that sits on top of the fabric — a layer that can crack, peel, and shed over time. Earthcove's water-based inks work differently: the colour is held by a binder that bonds into the fabric itself rather than coating its surface. Water is the carrier, not plastic.
The pigments are GOTS approved and independently tested to be free from heavy metals, phthalates, formaldehyde, azo dyes and PFAS. This is the standard we have maintained across the Pure Earth Collection group for nine years.