Callahan X REVOLVE High Waist Short in Tan. - size XS (also in L, S) Callahan X REVOLVE High Waist Short in Tan. - size XS (also in L, S) 100% cotton. Hand wash cold. Front faux button closure. Elasticized waistband. Rib knit fabric. Item is not sold as a set. Shorts measure approx 10.5 in length. Imported. CAHN-WF7. RC207. 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.