Description of Arcteryx Operative Crossback Tank - Women's With it's discrete longer length, comfortably supportive shelf bra and contrasting colours, this sporty top goes anywhere. Made with a cotton/lycra knit for ultra comfort, the wide shoulder straps cross at the back for support and flair. Features: Cotton tank top 96% Combed Cotton, 4% Spandex Jersey Knit Weight: 122g