Move Freely with SeamSmart Technology. Recycled polyamide/ polyester/ elastane seamless ribbed fabric with knitted contrast stripe to waistband. The Don't Sweat It Bikini Bottoms from Dare 2b are made from recycled seamless knitted fabric with contrast stripe detailing to flatter your waist. SeamSmart technology provides ultimate comfort as material sits smoothly on the skin and allows freedom of movement in the pool. Pair with the matching top and you're ready to go.