100% Calfskin. Flap closes with leather strap and silvertone metal buckle. Strap adjusts with silvertone metal buckle for shoulder carrying. Tone-on-tone topstitching on edges. Small silvertone 'A.P.C. rue Madame' logo embossed under flap. Unlined interior for a more minimalistic aspect. Protective resin coating on leather interior. Large interior zip pocket. Strap: 40 cm. Bottom: 30 x 7 cm. Bag: 30 x 24 x 7 cm.