Happy Nappy DUO Size Chart

Inner Nappy:

Size	Age	Waist (cm / in)	Thigh (cm / in)
S	0 - 3 months	37 cm / 14.6 in	18 cm / 7.1 in
M	3 - 6 months	39 cm / 15.4 in	20 cm / 7.9 in
L	6 - 12 months	41 cm / 16.1 in	22 cm / 8.7 in
XL	1 - 2 years	43 cm / 16.9 in	24 cm / 9.4 in
XXL	2 - 3 years	46 cm / 18.1 in	25 cm / 9.8 in
3T	3 - 4 years	48 cm / 18.9 in	26 cm / 10.2 in
4T	4 - 5 years	51 cm / 20.1 in	27 cm / 10.6 in

Outer Nappy:

Size	Age	Waist (cm / in)	Thigh (cm / in)
S	0 - 3 months	36 - 42 cm / 14.2 - 16.5 in	16.5 - 23 cm / 6.5 - 9.1 in
M	3 - 6 months	38 - 44 cm / 15.0 - 17.3 in	18 - 26 cm / 7.1 - 10.2 in
L	6 - 12 months	40 - 46 cm / 15.7 - 18.1 in	21.5 - 29.5 cm / 8.5 - 11.6 in
XL	1 - 2 years	42 - 48 cm / 16.5 - 18.9 in	22.5 - 32.5 cm / 8.9 - 12.8 in
XXL	2 - 3 years	44 - 50 cm / 17.3 - 19.7 in	24.5 - 35 cm / 9.6 - 13.8 in
3T	3 - 4 years	47 - 50 cm / 18.5 - 19.7 in	26 - 37 cm / 10.2 - 14.6 in
4T	4 - 5 years	51 - 54 cm / 20.1 - 21.3 in	28 - 40 cm / 11.0 - 15.7 in

*Please check waist and leg measurements and not just age in order to get the best fit.