SFA series features reasonable flexibility, facial mouth movement is possible.
SFA2 features B cup size.
 
Three fixing versions are available:
Laced back (default)
Pullover
Zipper back (additional cost of 20$)
 
Note that SFA mask has no fake eyes, so eye-distance in the size chart is important if you want a nice fit.
Product thickness 3 - 5mm
 
By default fiber padding will be supplied.
Special Gel-filled breast is now available.
 
Product packaging weight is around 2kg, Gel-filled breast version will be 3.3kg