Marvel, The Avengers (MA)
Available Sizes:
Size Shoulder Height Waist Length 13 10"/25.4cm 16"/40.6cm 8.5"/21.6cm [Stretchable] 13.5"/34.3cm 15 12"/30.5cm 18.5"/47cm 9"/22.9cm [Stretchable] 16.5"/41.9cm

Baymax (BM)
Available Sizes:
Size Shoulder Height Waist Length 12 10.5"/26.7cm 14.5"/36.8cm  8.5"/21.6cm [Stretchable] 12"/30.5cm 13 10.5"/26.7cm 15.5"/39.4cm   8.5"/21.6cm [Stretchable]  13.5"/34.3cm 14 11"/27.9cm  17"/43.2cm 9"/22.9cm [Stretchable] 15"/38.1cm

Please note that the dimensions for the 2 models are different in shoulder/height/waist/length.
So please choose the sizes correctly.