SIR. Rioja String Brief is a tie-side bikini bottom by SIR. designed for adjustable fit and visual impact. It features a mineral-blue striped pattern with beaded side embellishment for beachwear styling. Key attributes: Blue | Nylon | Tie-side fastening | Adjustable ties | Striped pattern | Beaded side embellishment | Side tie detail | Composition & care: Be mindful to try on swimwear over your own garments. All products are handcrafted.