For those who prefer a little more coverage, the Essential Tank Bra offers a sleek and comfortable fit with a tank-style silhouette. Made with our signature bamboo viscose blend, this bra is as breathable as it is supportive, making it the perfect choice for a versatile everyday essential. Composition: 95% bamboo viscose, 5% spandex. *Delivery times for Bamboo Underwear products may vary between 5 and 10 business days.