87% Nylon, 13% Spandex: Breathable, Quick Drying Fabric, with a moisture transport system and antimicrobial technology, wicks away moisture and keeps you cool KINDLY NOTE: We have enlarged these tanks tops according to customers' comments. Please do refer to our size chart to find your fitted tank tops The Racerback Tank Top for women has a streamlined look with a fitted design that's snug without the squeeze of compression Racerback design adds ventilation and freedom of movement. 4-way stretch construction and ergonomic flatlock seams offer second-skin performance for all types of workouts Built-in shelf bra & removable rubber-foam bra cups for offering exceptional support from studio to street Super Soft Elastic Lightweight fabric designed for various indoor activities and outdoor excursion: yoga, sports, running, cross training, weight training. We also launched out another style tank top, please search the ASIN: B075T9Q1HT for more details