These black stretch-nylon smooth briefs have a low-rise, a mesh back and satin trimmed edges with an organic cotton lined base. 71% nylon, 29% elastane. Machine wash. Size and fit: Model is 5ft 9in/ 1.80m, is a UK 08 and wears a size S. Fits true to size, stretches to fit. Hip 25in/63.5cm.