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Under Armour Fit Guide

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)
SM34-3628-29
MD38-4030-32
LG42-4434-36
XL46-4838-40
XXL50-5242-44
3XL52-5444-46
4XL54-5646-48
5XL56-5848-50

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 above your hips. Be careful not to squeeze too tight to allow a little give.

Men’s Bottoms

WAIST (in)
SM28-29
MD30-32
LG34-36
XL38-40
XXL42-44
3XL44-46
4XL46-48
5XL48-50

How To Measure

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

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 SIZESBUST (in)WAIST (in)
XS0-231-3323-25
SM4-633½-35½25½-27½
MD8-1036-3828-30
LG12-1438½-40½30½-32½
XL1641-4333-35
XXL1844-4636-38

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 SIZESWAIST (in)HIP (in)
XS0-223-2533-35
SM4-625½-27½35½-37½
MD8-1028-3038-40
LG12-1430½-32½40½-42½
XL1633-3543-45
XXL1836-3846-48

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)
XS28
SM30-32
MD34-36
LG36-38
XL38-40
XXL40-42

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

Band Size Chart
MEASUREMENT (in)BAND SIZE
2730
2832
2932
3132
3234
3334
3436
3536
3636
3738
3838
Cup Size Chart
SIZESDIFFERENCE
 A1 inch
 B2 inches
 C3 inches
 D4 inches
 DD5 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’

US SIZESCHEST (in)WAIST (in)HEIGHT (in)
YXS725-2622-2348-50
YSM826-2823-2450-54
YMD10-1228-3025-2654-59
YLG14-1630-3226-2759-63
YXL18-2032-3428-2963-67

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.

Girls’

US SIZESCHEST (in)WAIST (in)HEIGHT (in)
YXS725-2622-2348-50
YSM826-2823-2450-54
YMD10-1228-3025-2654-59
YLG14-1630-3226-2759-63
YXL18-2032-3428-2963-67

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.

Little Boys’

US SIZESChest (in)Waist (in)Height (in)
423-2421¼40-42
523-2421¾42-45
625-262245-48
725-2622-2348-51

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.

Little Girls’

US SIZESChest (in)Waist (in)Height (in)
423-2421¼40-42
525-2621¾42-45
626-272245-48
6x27-2822-2348-49

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.

Toddlers

Chest (in)Waist (in)Height (in)Weight (lb)
2T21-2220-2134-3629-33
3T22-2321-2236-3832-36
4T23-2422-2338-4035-39

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 SIZESChest (in)Height (in)Weight (lb)
0-3 M16-1722-248-12
3-6 M17-1824-2612-16
6-9 M18-1926-2816-20
12 M19-2028-3018-22
18 M20-2130-3222-26
24 M21-2232-3426-30

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.

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.

Men’s Shoes

US MenInchesCMEuroUK
79⅞25406
7.51025.540.56.5
810⅛26417
8.510⅜26.5427.5
910⅝2742.58
9.510¾27.5438.5
101128449
10.511⅛28.544.59.5
1111⅜294510
11.511⅝29.545.510.5
1211¾304611
12.51230.54711.5
1312⅛3147.512
13.512¼31.54812.5
1412⅝3248.513
14.512⅞32.54913.5
15133349.514
15.513⅛33.55014.5
1613¼3450.515

How To Measure

FOOT:We start with the true foot, which means we measure from heel to toe. That measurement (in centimeters) is then translated into our standard sizes.

To find your foot measurement closely trace your entire foot onto a piece of paper and measure from heel to toe. If your measurement is between chart numbers, we recommend sizing up.

Women’s Shoes

US WomenInchesCMEuroUK
52235.52.5
5.58⅞22.5363
69⅛2336.53.5
6.523.537.54
79⅜24384.5
7.59⅝24.538.55
825395.5
8.51025.5406
910⅛2640.56.5
9.510⅜26.5417
1010⅝27427.5
10.510¾27.542.58
111128438.5
11.511⅛28.5449
1211⅜2944.59.5

How To Measure

FOOT:We start with the true foot, which means we measure from heel to toe. That measurement (in centimeters) is then translated into our standard sizes.

To find your foot measurement closely trace your entire foot onto a piece of paper and measure from heel to toe. If your measurement is between chart numbers, we recommend sizing up.

Kid’s Shoes

US YouthInchesCMEuroUK
2K3⅛817.51.5
3K918.52.5
4K41019.53.5
5K11214.5
6K4⅝12225.5
7K5⅛1323.56.5
8K14257.5
9K15268.5
10K16279.5
10.5K6⅝16.527.510
11K172810.5
11.5K717.52911
12K1829.511.5
12.5K7⅓18.53012
13K7⅝193112.5
1203213.5
1.5820.5331
22133.51.5
2.58⅓21.5342
38⅝22352.5
3.522.535.53
4923363.5
4.523.536.54
52437.54.5
5.524.5385
62538.55.5
6.59⅝25.5396
726406

How To Measure

FOOT:We start with the true foot, which means we measure from heel to toe. That measurement (in centimeters) is then translated into our standard sizes.

To find your foot measurement closely trace your entire foot onto a piece of paper and measure from heel to toe. If your measurement is between chart numbers, we recommend sizing up. Be sure you're putting your full weight on your foot while tracing. Please note: for the best results, measuring later in the day is recommended.

We created this easy-to-use sizing chart so that finding the right size shoes for your kids won’t be a workout in itself. *Due to the metric/imperial conversions, there will be some instances where two US sizes will equal one UK size or one CM size.

Download the Youth Footwear Guide

Headwear

ADJUSTABLE CAP SIZE

Head (in)
MEN’S OSFA22-23½
WOMEN’S OSFA21¼-22¾
YOUTH OSFA20⅞-22⅜

STRETCH-FIT

Head (in)
S/M20⅞-21½
M/L22-23
L/XL23-24¼
XL/XXL24¼-25½

FITTED

US SizesHead (in)
6⅝20⅞
21¼
6⅞21⅝
722
7⅛22⅜
22¾
7⅜23
23½
7⅝23⅞
24¼
7⅞24¾
825⅛
8⅛25½

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

Gloves

MEN’S

SizesPalm to Finger
XS6¾-7
SM7-7¼
MD7¼-7½
LG7½-7¾
XL7¾-8
XXL8-8¼

WOMEN’S

SizesPalm to Finger
XS5¾-6¼
SM6¼-6½
MD6½-6¾
LG6¾-7
XL7-7¼

YOUTH

SizesPalm to Finger
YSM6¼-6½
YMD6½-6¾
YLG6¾-7

How To Measure

HANDS: On your dominant hand, measure from the base of your palm to the tip of your middle finger then use the chart to find your ideal UA glove size. You can also measure the circumference of your palm right under your fingers.

Socks

Youth
YMD10½-13½
YLG1-4
MenWomen
MD4-8½7-10½
LG9-12½11-13
XL13-16

How To Measure

Sock sizes are based on US shoe size.