Bisou Ai are a doll line created by Custom House. They are 19 cm tall and have a chubby style body. Suggested eye size is 10mm, suggested wig size is 4-5".
These are the measurements given by Custom House
Height - 19cm
Neck circumference - 5cm
Chest circumference - 9.4cm
Waist circumference - 9.3cm
Hip circumference - 10.8cm
Wrist circumference - 2.8cm
Right hand width - 1.7cm
Left hand width - 1.7cm
Ankle circumference - 3.6cm
Knee circumference - 4.2cm
Shoulder to wrist - 2.7cm
Elbow to wrist - 2.8cm
Naval to knee - 6cm
Knee to feet - 5.2cm
Shoulder width - 3.3cm
Shoulder width including arms - 5cm
Head size - 12cm
Feet size - 2.7cm
Eye size - 10mm fits
Information on Accessories
It can be difficult to find clothes, shoes and wigs that fit Bisou Ais well. Their less common size makes clothes and shoes less common as well.
Custom House/Aidolls does make clothes, wigs and shoes specifically for Bisou Ais, but it may be difficult to purchase from them in their current business model.
Ruby Red Galleria has a section of their website with clothes, wigs and shoes specifically for Bisou Ais.
Some clothes made specifically for other types of dolls may also be suitable for Bisou Ais (including non-BJD brands). Some pieces from different brands may or may not fit, depending on the styles and cuts of fabric.
American Girl (tiny dolls)
Blythe (tops may be slightly large, but bottoms may be too small)
Cheerydoll Yo size (may be too big)
Ginny (shoes may be too big)
Kish Riley (but not shoes)
Lati Yellow dresses fit well (but may be shorter on Bisous) - Lati Yellow Special clothes fit well
Only Heart's Club
Pukifee (dresses can be used as shirts) Tiny Ann Estelle
Tiny Betsy McCall (but not shoes)
Some wigs may or may not be suitable for Bisou Ais, depending on the wig manufacturer and size.
Barbie Kish Riley (generally too small, but could be made to fit)
Lati Yellow wigs are too big.
Monique size 4-5" wigs fit.
Some shoes may be suitable for Bisou Ais.
Boneka size 030N
JuJu's Dolly Mall 28-29mm
Some other accessories may be in scale with Bisou Ais.
Bisou Ais could be hybrid-ized with. Lati Yellow SPs. Size and proportions seem to fit well, although resin color may be different from doll to doll.
Notes: there are many, many molds from Custom House that were discontinued, or limiteds from a long time ago. Some information on them may be incomplete. Please feel free to add anything you know, especially about the old limiteds!