Clothing is made of 100% cotton unless otherwise specified.  If you are unsure the clothing will fit, it's always best to select the next size up. 

SIZE	CHEST	LENGTH/HEIGHT	WEIGHT
Baby Tops & Bottoms	(inches)	(inches)	(pounds)
3-6 months	14"	14 - 24"	7 - 15 lbs
6-12 months	16"	25 - 28"	16 - 22 lbs
12-18 months	18"	29 - 31"	23 - 27 lbs
Toddler/Kids Tops
2T	21"	32 - 36"	31 - 34 lbs
4T	22"	36 - 40"	35 - 41 lbs
6T	23"	40 - 43"	42 - 45 lbs
8T	26"	48 - 50 "	49 - 52 lbs
10T	27"	51 - 54 "	54 - 62 lbs
12T	28"	55 - 59 "	62 - 75 lbs
Toddler/Kids Bottoms	WAIST	HEIGHT	WEIGHT
2T	20.5"	36 - 36"	21 - 34 lbs
4T	21"	36 - 40"	25 - 41 lbs
6T	21.5"	40 - 43"	42 - 45 lbs