Third Street Size Chart

Infant Sizes

Size

Height

Weight

0-3 months

Up to 23 inches

Up to 12 pounds

3-6 months

14-26 inches

12.5-16 pounds

6-9 months

27-28 inches

16-18 pounds

12 months

29-30 inches

18-20 pounds

18 months

31-32 inches

20-24 pounds

24 months

33-36 inches

24-27 pounds

 

Toddler Sizes

Size

Height

Weight

2T

33-36 inches

25-28 pounds

3T

36-38 inches

29-32 pounds

4T

39-41 inches

33-37 pounds

5T

42-44 inches

37-40 pounds

 

Youth Sizes

Size

Height

Weight

S (6-8)

44-48 inches

52-67 pounds

M (10-12)

48-50 inches

68-92 pounds

L (14-16)

50-58 inches

92-115 pounds

XL (18-20)

58-64 inches

116-129 pounds