Vendor Size Chart Under-Armour

Youth Sizes

Youth Sizes YS (8) YM (10-12) YL (14-16) YXL (18-20)
Chest 26 - 28 28 - 30 30 - 32 32 - 34
Waist 23 - 24 25 - 26 26 - 27 28 - 29

Adult Uniform Sizes

Adult Small Medium Large X-Large 2X-Large 3X-Large
Chest 34" - 36" 38" - 40" 42" - 44" 46" - 48" 50" - 52" 54" - 56"
Waist 28" - 29" 30" - 32" 34" - 36" 38" - 40" 42" - 44" 46" - 48"

Youth Uniform Sizes

Youth Small Medium Large X-Large
Size 8 10 - 12 14 - 16 18 - 20
Chest 26" - 28" 28" - 30" 30" - 32" 32" - 34"
Waist 23" - 24" 25" - 26" 26" - 27" 28" - 29"

Youth Sizes

Youth Sizes YXS (6-6X) YS (7-8) YM (10-12) YL (14-16) YXL (18-20)
Chest 24 - 25 26 - 27 28 - 30 31 - 33 35 - 37
Waist 23 - 23.5 23.5 - 24 25 - 26 28 - 30 32 - 34
Hip 25 - 25.75 27 - 28 30 - 32 34 - 36 38 - 40

Headwear Sizes

Adjustable Cap Size  
  Head (in.)
Men's OSFA 22 - 23 1/2"
Women's OSFA 21 1/4 - 22 3/4"
Youth OSFA 20 7/8 - 20 3/8"
Stretch-FIT  
  Head (in.)
S/M 20 7/8 - 21 1/2"
M/L 22 - 23"
L/XL 23 - 24 1/4"
XL/XXL 24 1/4 - 25 1/2"
Fitted  
US Sizes Head (in.)
6 5/8 20 7/8"
6 3/4 21 1/4"
6 7/8 21 5/8"
7 22"
7 1/8 22 3/8"
7 1/4 22 3/4"
7 3/8 23"
7 1/2 23 1/2"
7 5/8 23 7/8"
7 3/4 24 1/4"
7 7/8 24 3/4"
8 25 1/8"
8 1/8 25 1/2"

Adult Sizes

Adult Sizes Small Medium Large X-Large 2X-Large 3X-Large
Chest 34 - 36 38 - 40 42 - 44 46 - 48 50 - 52 54 - 56
Waist 28 - 29 30 - 32 34 - 36 38 - 40 42 - 44 44 - 46

Sleeve Sizes

Point of Measure S/M L/XL
Sleeve Length 16" 18"
Top Sleeve - Relaxed 5" 5.5"
Forearm 8" Up From Sleeve Opening 4.25" 4.5
Sleeve Opening (long) - Relaxed 3.25" 3.5"

Sock Sizes

Sock Sizes Youth Shoe Size Women's Shoe Size Men's Shoe Size
Yth Large 1 - 4 -- --
Small -- 4 - 6.5 --
Medium -- 7 - 10.5 4 - 8.5
Large -- 11 - 13 9 - 12.5
X-Large -- -- 13 - 16

Women's Sizes

Women's Sizes X-Small (0-2) Small (4-6) Medium (8-10) Large (12-14) X-Large (16) 2X-Large (18)
Bust 31 - 33 33.5 - 35.5 36 - 38 38.5 - 40.5 41 - 43 44 - 46
Waist 23 - 25 25.5 - 27.5 28 - 30 30.5 - 32.5 33 - 35 36 - 38
Hips 33 - 35 35.5 - 37.5 38 - 40 40.5 - 42.5 43 - 45 46 - 48

Women's Sizes

Size X-Small (0-2) Small (4-6) Medium (8-10) Large (12-14) X-Large (16) 2X-Large (18)
Bust 28 30 - 32 34 - 36 36 - 38 38 - 40 40 - 42
How To Measure:

BUST: First, find your bust size by measuring around the fullest part of the chest while wearing a bra with little to no extra padding. If you don't have a tape measure, use a string and measure it against a ruler. Find your measurement on the size chart to determine your ideal Under Armour sports bra size.

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