Under Armour Sportswear Sizing
 
Under Armour Youth Size Waist (inches) Waist (cm) Chest (inches) Chest (cm)
S 28-29 71-74 34-36 86-91
M 30-32 76-81 38-40 97-102
L 34-36 86-91 42-44 107-112
XL 38-40 97-102 46-48 117-122
XXL 42-44 107-112 50-52 127-132
XXXL 46-48 117-122 54-56 137-142
 
Under Armour Youth Size Waist (inches) Waist (cm) Chest (inches) Chest (cm)
S (YOUTH) 23 - 24 59 - 61 26 - 28 66 - 71
M (YOUTH) 25 - 26 64 - 66 28 - 30 71 - 76
L (YOUTH) 26 - 27 66 - 69 30 - 32 76 - 81
XL (YOUTH) 28 - 29 71 - 74 32 - 34 81 - 86
 
See our complete Lingerie Fitting Guide here.