Swimsuit by Vitamin A, Just add water, V-neck, Adjustable straps, Cross-over back, It's all in the details, Brief cut. Southern Californian brand Vitamin A is all about crafting stylish and sustainable swimwear. Its retro-chic swimsuits and bikinis are designed and produced locally from organic and recycled fibres, including the brand's very own variety of recycled nylon. Not content there, it also donates a percentage of sales to organisations committed to protecting and preserving clean water.