525 Poppy Tank in Blue. - size M (also in L, S, XL, XS) 525 Poppy Tank in Blue. - size M (also in L, S, XL, XS) 52% viscose 48% nylon. Made in China. Machine wash. Knit fabric. Item not sold as set. 525A-WS218. 110021854. A favorite of celebrity stylists, the 525 story began in Brooklyn in 1983. The secret to its industry staying power and stellar reputation: A focus on high-quality cotton sweaters with a range that combines a solid foundation of staples and no shortage of seasonal trend-focused updates. The design team is constantly pushing their creative boundaries, developing new yarns and colors that appeal to all ages and budgets. Truly full spectrum, 525 offers something for everyone: from classic to cutting-edge; from cotton to cashmere. Shop the latest in fashion from 525