Saint Laurent Ladies Shoulder Bag. SKU: 801439 AAEAX. Saint Laurent Loulou Medium Quilted Shoulder Bag This shoulder bag features supple matelasse lambskin leather with signature chevron quilting and the YSL monogram. It has a sliding chain strap for shoulder or crossbody wear, a flap closure, and a spacious interior for everyday essentials. Material: Lambskin Leather Design: Chevron Quilting Hardware: YSL Monogram Strap: Sliding Chain Strap Closure: Flap Closure Style: Medium Shoulder Bag