What is a stage 2 undergarment after BBL?

The compression garment varies with the plastic surgeon. 
I do not recommend a garment or faja that is extremely tight over the buttocks. I typically ask patients to use adjustable garments with multiple bands so that tension can be adjusted and the areas of liposuction are less likely to get a fluid collection.   The garments typically do not cover the buttocks.  The key here is the size and the ability to tighten the garment, not the brand or make.  In my practice, the compression garments are provided as part of the BBL post op package.Kenneth Hughes, MD, Board Certified Plastic SurgeonLos Angeles, CA

Every PS is different so definitely check in with yours. I recommend a 1st stage garment for 4-6 weeks to be work 24/7 except for 20 minutes to shower. If during this 4-6 weeks the garment becomes loose or isn't really tight, then I recommend they purchase a smaller size stage I garment.After 6 weeks I don't want them in the stage I garment anymore as it can leave permanent indentations in the skin. They can choose to continue wearing a garment but a stage II garment. This means no zipper, hooks or seams. You want very smooth material. An example would be Spanx.