How do I use the String Nix discount code?

Copy the code STRINGNIXBF20 from this page, click through to String Nix, then paste it into the discount/voucher code box at checkout to apply the saving.

When does this String Nix code expire?

This code is valid until 30/11/2026. We check codes regularly, but expiry dates are set by the retailer and can change.

String Nix Voucher Code

Voucher Code

String Nix

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String Nix Black Friday 2026 - 20% off

Your Voucher Code

STRINGNIXBF20

20% off String Nix® for Black Friday with code STRINGNIXBF20 Valid sitewide from 1 November to 30 November 2026. String Nix® is a British women’s underwear brand featuring our signature product, the GOTS Certified organic cotton string thong. Designed for all day comfort, a smooth no VPL fit and available in 4 skin tone inspired shades plus classic Black and White. RRP £29.99.

Discount

20% off

Valid Until

30/11/2026

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About String Nix

Welcome to String Nix, your destination for exquisitely crafted luxury organic cotton thong underwear. This UK-based brand is dedicated to providing women with undergarments that s

Lingerie & Nightwear

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String Nix Voucher Code

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