Torrid Challis Sleeveless V-Neck Tank Torrid size 2 Challis woven fabric: New, improved, and loved by all—and still lightweight, drapey, and (really!) machine-washable. Stretch level: None. 82% rayon, 18% polyester. Machine wash cold. Tumble dry. 2 minor spots. One on the front and the other one on the back.