Callahan Mimi Jumpsuit in Black. - size L (also in M, S, XS) Callahan Mimi Jumpsuit in Black. - size L (also in M, S, XS) 95% cotton 5% elastane. Made in China. Hand wash. Pull-on styling. Crisscross halterneck with front cut-out. Open back. Ribbed knit fabric. CAHN-WC2. 42219. 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. Brand: Callahan