SIZE CHART
Baby 0-24 Months 
 Numeric Age weight height
(in lbs.) (in inches) (in cm)
P Preemie Up to 5 Up to 17 43.18 cm
NB Newborn 5--8 Up to 20 50.8 cm
3M 0-3 Months 8-12.5 20-23.5 50.8-60 cm
6M 3-6 Months 13-16.5 24-25.5 61-65 cm
9M 6-9 Months 17-20.5 26-27.5 66-70 cm
12M 9-12 Months 21-23.5 28-30.5 71-77 cm
18M 12-18 Months 24-26.5 31-32.5 79-83 cm
24M 18-24 Months 27-30 33-34.5 84-88 cm
Little Girls 2-6   
Numeric Alpa Size Age weight height
(in lbs.) (in inches) (in cm)
2T 2T 2 Years 24-29 33-35 84-89
3T 3T 3 Years 29-33 35-38 89-97
4T 4T 4 Years 33-37.5 39-41 99-104
4 S(4) 3-4 Years 37.5-42 42-44 107-112
5 M(5) 4-5 Years 42-46 45-47 114-119
6 L(6) 5-6 Years 46-53 48-49 122-124
6x XL(6x) 6-7 Years 53-58 50-52 127-132
Little Boys 2-7  
Numeric Alpa Size Age weight height
(in lbs.) (in inches) (in cm)
2T 2T 2 Years 24-29 33-35 84-89
3T 3T 3 Years 29-33 35-38 89-97
4T 4T 4 Years 33-37.5 39-41 99-104
4 S(4) 3-4 Years 37.5-42 42-44 107-112
5 M(5) 4-5 Years 42-46 45-47 114-119
6 L(6) 5-6 Years 46-53 48-49 122-124
7 XL(7) 6-7 Years 53-58 50-52 127-132
Big Girls 7-16  
Numeric Alpa Size Age Height Bust waist Hip
(in inches) (in cm) (in inches) (in inches) (in inches)
7 S(7-8) 6-7 Years 51-52 130-132 26-27 22.5 28
8 S(7-8) 7-8 Years 53-54 135-137 27-28.5 23.5 29
10 M(10-12) 8-9 Years 55-56 140-142 28.5-29.5 24.5 30
12 M(10-12) 10-11 Years 57-59 145-150 30-31 25.5 31-32
14 L(14) 11-12 Years 60-62 152-157 31-32 26.5 33-34
16 XL(16) 12-13 Years 63-64 160-163 33-34 27.5 35-36
Big Boys 8-20  
Numeric  Alpa Size Age Height Bust waist Hip
(in inches) (in cm) (in inches) (in inches) (in inches)
8 S(8) 7-8 Years 50-53 127-135 27-28 23-24 28
10 M(10-12) 8-9 Years 54-57 137-145 28.5-30 24-25 29
12 M(10-12) 10-11 Years 58-60 147-152 30-31 25.5-26.5 30
14 L(14-16) 11-12 Years 61-63 155-160 31-32 26.5-28 31-32
16 L(14-16) 12-13 Years 64-65 163-165 33-34 28-29 33-34
18 XL(18-20) 13-14 Years 65-66 165-168 34-35 29-30 34-35
20 XL(18-20) 14+ Years 66-67 168-170 35-36 30-31 35-36