P.E Nation Box Out Top in Black. - size XS (also in M) P.E Nation Box Out Top in Black. - size XS (also in M) 65% recycled nylon 35% elastane. Made in China. Machine wash. Front zipper closure. Logo details throughout. Thumbhole accents. Item not sold as set. PENR-WS26. 21PE2L007. 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.