Santi's our cool classic with a hint of vintage glamour.
In deepest navy, our signature notes - cowl neck, super low back, figure skimming, floor-sweeping silhouette - take on a sophisticated edge. The twist on the 90s favourite slip? Exaggerated straps which tie multiple ways for eclectic styling.
- Navy cupro
- Maxi length
- Cowl front
- Exaggerated tie fastenings
4 payments of £48.75 with Clearpay

How to style it
Styling notes by our Creative Directors
Valentina & Stephanie
We wear ours with leopard print, a bold lip and 70s style chunky platforms.
Size down. Model wears size XS.
Complete your look with our Low Back Pant. Designed to seamlessly compliment your R&B dress.
55% Rayon, 45% Cupro
This piece is made from a blend of rayon and cupro, plant-based fabrics made from regenerated cellulose fibres.
Dry clean only – we recommend you use an eco-friendly provider that avoids harsh chemicals.
- Dry clean only
- Do not bleach
- Iron at low temperature
- Do not tumble dry
- Do not steam
We want Rat & Boa to be a label that we can be proud of in every way possible. With that in mind, we’re making a promise: we want to design and create the clothes you love with minimal environmental impact, and positive social consequences.
Made with plant based fibres
Manufactured in a living wage factory
- Return items within 30 days of receipt
- Use our returns label or your own courier
- Return costs covered by the customer
- Level 4 members are exempt from return costs