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Many people are hesitant to order online because of fit. Will it be too tight? Too loose? Too short? Or too long? Will it be the right cut for my body type? Is it supposed to fit like this? To help ease the uncertainty, we've put together a comprehensive fit guide. It will walk you through the various steps to finding the right UA fit for all our gear.

Under Armour® performance gear was built to be consistent with traditional sizing parameters. This means if you normally wear a "Large" T-shirt, you would also wear a "Large" UA T-shirt. So please order accordingly...and with confidence.

MEN’S TOPS

CHEST (in) WAIST (in)
XS 30-32 26½-27½
SM 34-36 28½-30
MD 38-40 31½-33½
LG 42-44 35-37
XL 46-48 39-41
XXL 50-52 43-45½
3XL 54-56 47½-50
4XL 58-60 52-54½
5XL 62-64 56½-59
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline—right above your hips. Be careful not to squeeze too tight to allow a little give.

MEN’S BOTTOMS

US SIZES WAIST (in) HIP (in)
XS 26-27 26½-27½ 32-33
SM 28-29 28½-30 34-35½
MD 30-32 31½-33½ 37-38½
LG 34-36 35-37 40-42
XL 38-40 39-41 44-46
XXL 42-44 43-45½ 48-50
3XL 46-48 47½-50 52-54
4XL 50-52 52-54½ 56-58
5XL 54-56 56½-59 60-62

HOW TO MEASURE

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably

MEN’S FIT GUIDE

LOOSE

Fuller cut for complete comfort, total range of motion & greater breathability.

FITTED

A slimmer, athletic cut that allows total mobility but eliminates the bulk of extra fabric.

COMPRESSION

Ultra-tight, second-skin fit that keeps you locked in & makes you feel like you can do anything.

WOMEN’S TOPS

US SIZES BUST (in) WAIST (in)
XS 0-2 32½-33½ 25½-26½
SM 4-6 33½-35½ 27½-28½
MD 8-10 36½-37½ 29½-30½
LG 12-14 39-40½ 32-33½
XL 16 42-43½ 35-36½
XXL 18 45-46½ 38-39½
 

HOW TO MEASURE

BUST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

WOMEN'S BOTTOMS

US SIZES WAIST (in) HIP (in)
XS 0-2 25½-26½ 34½-35½
SM 4-6 27½-28½ 36½-37½
MD 8-10 29½-30½ 38½-39½
LG 12-14 32-33½ 41-42½
XL 16 35-36½ 44-45½
XXL 18 38-39½ 47-48½
 

HOW TO MEASURE

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably

SPORTS BRAS

BUST (in)
XS 28
SM 30-32
MD 34-36
LG 36-38
XL 38-40
XXL 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 UA sports bra size.

ARMOUR BRA

MEASUREMENT (in) BAND SIZE
27 30
28 32
29 32
31 32
32 34
33 34
34 36
35 36
36 36
37 38
38 38
Cup Size Chart
SIZES DIFFERENCE
  A 1 inch
  B 2 inches
  C 3 inches
  D 4 inches
  DD 5 inches

HOW TO MEASURE

BAND SIZE: Standing straight up with an unpadded bra on, measure closely around the chest just under your arms, right above the bust. If your result is a fraction, round to the nearest whole number. (ex. 33.7" rounded to the nearest whole number, your band measurement is 34")

CUP SIZE: While wearing a non-padded bra, keep the tape parallel & measure at the fullest part of your bust. Round this measurement UP the nearest WHOLE number. Subtract BAND size from BUST size to find your CUP size. EX. 32” - 28”

WOMEN’S FIT GUIDE

LOOSE

Fuller, more generous cut for enhanced range of motion & an effortlessly relaxed fit.

SEMI-FITTED

A slimmer, athletic cut that delivers optimal mobility by eliminating the bulk of extra fabric.

FITTED

Sits close to the skin for a streamlined fit without the squeeze of compression.

COMPRESSION

Ultra-tight, second-skin fit that locks you in & makes you feel like you can do anything.

BOYS’

REGULAR SIZES

US SIZES CHEST (in) WAIST (in) HIPS (in)
YXS 6-6X 24-25 23-23½ 25-26
YSM 7-8 25½-26½ 23½-24½ 26½-28
YMD 10-12 27½-28½ 25½-26½ 29-30½
YLG 14-16 30½-32 28-29½ 32-33½
YXL 18-20 33½-35 31-32½ 35-36½

HUSKY SIZES

WAIST (in) HIPS (in) HEIGHT (in)
8H 26½-27½ 29½-30½ 50-52
10H 28-29 31-32 53½-55½
12H 29½-30½ 32½-33½ 56½-58½
14H 31-32 34-35 59½-61½
16H 32½-33½ 35½-36½ 62-64
18H 34-35 37-38 64½-66½
20H 35½-36½ 38½-39½ 67-69
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline-right above your hips. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably

GIRLS’

REGULAR SIZES

US SIZES CHEST (in) WAIST (in) HIP (in)
YXS 6-6X 24-25 23-23½ 25-26
YSM 7-8 26-27 23½-24½ 27½-28½
YMD 10-12 28½-30 25-26 30-32
YLG 14-16 31½-33½ 28-30 34-36
YXL 18-20 35½-37½ 32-34 38-40

PLUS SIZES

WAIST (in) HIPS (in) HEIGHT (in)
7P 26-27 30-31 49½-51
8P 27-28 31½-32½ 51½-53
10P 27½-28½ 32½-33½ 53-55
12P 29½-30½ 33½-34½ 56-58
14P 31-32 35½-36½ 59-61
16P 33-34 37-38 61-62½
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably

BOYS’ FIT GUIDE

LOOSE

Full, loose fit for enhanced range of motion & breathable comfort no matter where your workout takes you.

FITTED

Sits close to the skin for a streamlined fit without the squeeze of compression.

GIRLS’ FIT GUIDE

LOOSE

Full, loose fit for enhanced range of motion & breathable comfort no matter where your workout takes you.

FITTED

Sits close to the skin for a streamlined fit without the squeeze of compression.

LITTLE BOYS’

US SIZES Chest (in) Waist (in) HIP (in) Height (in)
4 21½-22½ 21½-22½ 22½-23½ 38-41
5 22½-23½ 22-23 23½-24½ 41-44
6 22½-24½ 22½-23½ 24½-25½ 44-46½
7 24½-26 23-24 25½-26½ 46½-50
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably

LITTLE GIRLS’

US SIZES Chest (in) Waist (in) HIP (in) Height (in)
4 21½-22½ 21½-22½ 22½-23½ 38-41
5 22½-23½ 22-23 23½-24½ 41-44
6 23½-24½ 22½-23½ 24½-25½ 44-46
6x 24½-25 23-23½ 25½-26 48½-48½
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably

TODDLERS

Chest (in) Waist (in) Height (in) Weight (lb)
2T 20-21 20½-21½ 33-35 29-33
3T 20½-21½ 21-22 35-38 32-36
4/4T 21½-22½ 21½-22½ 38-41 35-39
5 22½-23½ 22-23 41-44 38-42
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

WAIST: Measure around your natural waistline—right where your hips start. Be careful not to squeeze too tight to allow a little give.

HIPS: With your feet together, measure around the fullest part of your hips to ensure you'll have enough room to move comfortably.

INFANT

US SIZES Chest (in) Height (in) Weight (lb)
0-3 M 15½-17 20½-24 8-12
3-6 M 17-18 24-27 12-16
6-9 M 18-18½ 27-29 16-20
12 M 18½-19 29-30 18-22
18 M 19-20 30½-33 22-26
24 M 20-21 33-35 26-30
 

HOW TO MEASURE

CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.

HEADWEAR

ADJUSTABLE CAP SIZE

Head (in)
MEN’S OSFA 22-23½
WOMEN’S OSFA 21¼-22¾
YOUTH OSFA 20⅞-22⅜

STRETCH-FIT

Head (in)
S/M 20⅞-21½
M/L 22-23
L/XL 23-24¼
XL/XXL 24¼-25½

FITTED

US Sizes Head (in)
6⅝ 20⅞
21¼
6⅞ 21⅝
7 22
7⅛ 22⅜
22¾
7⅜ 23
23½
7⅝ 23⅞
24¼
7⅞ 24¾
8 25⅛
8⅛ 25½

HOW TO MEASURE

HEAD: To figure out your UA fitted hat size, measure the circumference of your head where your hat will rest. 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 UA hat size

SOCKS

Youth
YMD 10½-13½
YLG 1-4
Men Women
MD 4-8½ 7-10½
LG 9-12½ 11-13
XL 13-16

HOW TO MEASURE

Sock sizes are based on US shoe size.