Bikini briefs by Y.A.S., Just add water, Cut-out sides, It's all in the details, Brief cut. Putting a clean twist on everyday essentials, Danish label Y.A.S. packs its understated-cool style into dresses, premium leather and tailored pieces. Think minimalist designs paired with a contemporary colour palette. Please note: The hip measurements run slightly smaller on this brand, please refer to the size guide.