P.E Nation Flex Legging in Black. - size S (also in L, M, XS) P.E Nation Flex Legging in Black. - size S (also in L, M, XS) Self: 76% recycled polyester 24% elastane Lining: 90% recycled polyester 10% elastane. Made in China. Machine wash. Wide stretch waistband with back slip pocket. Contrast design at leg. Patch logo detail at hip. Item not sold as a set. PENR-WP145. 234G226_BLACK. P.E Nation is the pioneer of active, fashion, and street rolled into one brand. Each active piece is extremely high performance while also being breathable, smoothing, and lifting. Each collection is thoughtfully curated so that every piece can be worn back many different ways, giving you a plethora of options to style it your way. P.E Nation has infiltrated the athleisure market with wearable, fashion forward sports luxe pieces that can be mixed in with any modern wardrobe.