Authentic. YSL hot pink patent heart-shaped cosmetic limited edition bag converted into an adjustable crossbody. Strap is black patent that is removable. Interior is silky black fabric with 2 slots for lipstick/gloss and/ or mascara with room for $ and cards. Black zippered with patent pull. Attached is the mirror that fits inside. Hardware is pewter metal that is movable for ease of movement of the crossbody strap. Dust bag is included to protect heart even though strap does fit but is tight. The heart measures 4.25" x 4.25" x 1.75". Crossbody strap measures 36" smallest to 42" longest. Adorable accessory addition. Brand new, Never used.