[Reference] YSL LouLou Small, black with GHW. Reference. Hello Ladies! I'm very fortunate to have purchased my first authentic bag in Paris last month and finally got around to taking some nice photos of it. The YSL LouLou, small size in black with gold hardware. Hope these can help QC for someone!! <3. I would say that the only flaw of the YSL LouLou’s compartmentalisation is the fact that there is no pocket on the exterior of the bag. YSL LouLou Sizes and Dimensions. The LouLou shoulder bag comes in three sizes – Small, Medium and Large. The LouLou is generally considered to be quite big, and the large may be too big for smaller frames. Paper Yves Saint Laurent monogramme loulou loulou medium in matelasse-y-leather shoulder bag black by Paper YSL. 5.0 out of 5 stars ysl loulou bag small 3. $256.00 $ 256.