Details, Size & Fit. Comfortable, quality, seamless bikini briefs. The B Free Intimate Apparel: Seamless Bikini Sparkly Waistbriefs offer light control with a breathable, cotton gusset and a wide supportive, reflective lurex waistband. These gorgeous sparkly briefs offer a seam-free finish and a comfortable soft micro fibre design.Wash before wear. Warm machine wash with like colours. Line dry. Material: Nylon/Elastane.SKU: BF722AA59TCY.