Style: 155149 Ionic+TM (8%) Bio-Material fibers are combined together with cooling Nylon yarns to create a smart-knit mineral blend Perforated foam, smooth, full-cover contour cups have open pique soft lining to allow for breathability, assisting body temperature regulation Seam-free engineered bra wing provides flexible-fit support and allows for 360 of Euphoric comfort without the use of harsh elastics Wider width, fully adjustable, plush-back comfort shoulder straps are close-set to help prevent strap slippage Center Front closure for ease of fastening The perfect combination of comfort and style! Made with breathable bio-material fibers and cooling nylon fabric, this bra features a smart-knit mineral blend for unparalleled comfort. The seam-free engineered bra wing provides flexible-fit support without the use of hard elastic. With its front-close racerback design and contour cups for gentle shaping, this bra is the ultimate everyday essential. Product Details: Style: 155149 Ionic+TM (8%) Bio-Material fibers are combined together with cooling Nylon yarns to create a smart-knit mineral blend Perforated foam, smooth, full-cover contour cups have open pique soft lining to allow for breathability, assisting body temperature regulation Seam-free engineered bra wing provides flexible-fit support and allows for 360 of Euphoric comfort without the use of harsh elastics Wider width, fully adjustable, plush-back comfort shoulder straps are close-set to help prevent strap slippage Center Front closure for ease of fastening Fabric Content: Cup: 80% Nylon, 13% Elastane, 7% Ionic+TM Nylon Wing: 77% Nylon, 13% Elastane, 7% Ionic+TM Nylon