Vix Swimwear Betsey Long Tie Bikini Bottom in Ivory. - size S (also in ) Vix Swimwear Betsey Long Tie Bikini Bottom in Ivory. - size S (also in ) Self & Contrast: 84% polyamide 16% elastane. Hand wash cold. Side tie closures. Stretch fit. VIXS-WX803. 101 356 003. Brazilian designer Paula Hermanny offers swimwear made for the jet setter who is both classic and modern. Whether her Vix woman is in St. Barts, Bali, or Monte Carlo, Hermanny's collection of swimwear, which features leather and gold signatures, will always add an element of luxury to the occasion.