S - Shorts Stretch with Band

Example Size 2-3 Stretch from 25cm-33cm

Size (cm) 2-3 4-5 6-7 8-9
L 25 29 33 37
W 25 27 29 31
S 33 35 37 39

Size (inches)  2-3 4-5 6-7 8-9
L 9.8 11.4 12.9 14.5
W 9.8 10.6 11.4 12.2
S 12.9 13.7 14.5 15.3

Modem is Age 5 wearing a Size 4-5