Callahan Rosie Tank in Cream. - size L (also in M, S, XL, XS) Callahan Rosie Tank in Cream. - size L (also in M, S, XL, XS) 60% cotton 40% acrylic. Made in China. Machine wash. Adjustable shoulder straps. Front rosette detail. Lightweight open crochet fabric. Item not sold as a set. CAHN-WS44. rosie tank. Los Angeles based brand Callahan is known for their comfy sweaters and perfect boyfriend fits. Their line is elevated by unique textures, materials, and techniques that give each piece versatility and wearability. Designed for cool girls everywhere, Callahan is inspired by effortlessly easy style. Shop the latest in fashion from Callahan