OnGossamer Cotton Hip Bikini is an incredibly soft Pima Cotton Bikini that youÆll want to wear every day of the week. The Cotton Hip Bikini features a low-rise cut and moderate back coverage. Soft with a slight stretch, this OnGossamer Cotton Hip Bikini is perfect with low-rise styles. This OnGossamer Cotton Hip-G thong eliminates panty lines, does not ride up after youÆve been sitting down and is made with Lycra for shape retention. A cotton undie must-have. OnGossamer's lingerie has become a celebrity staple. OnGossamer offers women a modern of lingerie must haves.