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Under Armour Apparel Sizing Charts

Under Armour Men's Size ChartSMLXLXXLXXXL
Chest34"-36"38"-40"42"-44"46"-48"50"-52"52"-54"
Waist28"-29"30"-32"34"-36"38"-40"42"-44"44"-46"

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Under Armour Women's Size ChartXS (0-2)S (4-6)M (8-10)L (12-14)XL (16)XXL (18)
Bust31"-33"33.5"-35.5"36"-38"38.5"-40.5"41"-43"43" +
Waist23"-25"25.5"-27.5"28"-30"30.5"-32.5"33"-35"35" +
Hips33"-35"35.5"-37.5"38"-40"40.5"-42.5"43"-45"45" +

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Under Armour Women's Sports Bra Size ChartXSSMLXLXXL
Bust28"30"-32"34"-36"36"-38"38"-40"40"-42"

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Under Armour Boys' and Girls' Size ChartXS (7)SM (8)MD (10-12)LG (14-16)XL (18-20)
Chest25"-26"26"-28"28"-30"30"-32"32"-34"
Waist22"-23"23"-24"25"-26"26"-27"28"-29"
Height48"-50"50"-54"54"-59"59"-63"63"-67"

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Under Armour Little Boys' Size Chart4567
Height40"-42"42"-45"45"-48"48"-51"
Weight35-40 lbs.40-45 lbs.45-50 lbs.50-55 lbs.
Chest24"-25"25"-26"26"-27"27"-28"
Waist22"-23"23"-24"24"-25"25"-26"
Hip24"-25"25"-26"26"-27"27"-28"
Inseam18"19.5"21"22.5"

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Under Armour Little Girls' Size Chart4567
Height40"-42"42"-44"44"-46"46"-48"
Weight35-40 lbs.40-45 lbs.45-50 lbs.50-55 lbs.
Chest24"-25"25"-26"26"-27"27"-28"
Waist22"-23"23"-24"24"-25"25"-26"
Hip24"-25"25"-26"26"-27"27"-28"
Inseam17.5"19"20.5"22"

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Under Armour Boys' and Girls' Toddler Size Chart2T3T4T
Height34"-36"36"-38"38"-40"
Weight29-33 lbs.32-36 lbs.35-39 lbs.
Chest21"-22"22"-23"23"-24"
Waist20"-21"21"-22"22"-23"
Hip21.5"-22.5"22.5"-23.5"23.5"-24.5"
Inseam13"-14"14.5"-15.5"16"-17"

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Under Armour Infant Boys' and Girls' Size Chart12 Months18 Months24 Months
Height28"-30"30"-32"32"-34"
Weight18-22 lbs.22-26 lbs.26-30 lbs.
Chest19"-2020"-21"21"-22"
Waist19"-20"20"-21"21"-22"
Hip20"-21"21"-22"22"-23"
Inseam9.5"11"12.5"
Torso30"-31"32"-33"34"-35"

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Under Armour Newborn Boys' and Girls' Size Chart0-3 Months3-6 Months6-9 Months
Height22"-24"24"-26"26"-28"
Weight8-12 lbs.12-16 lbs.16-20 lbs.
Chest16"-17"17"-18"18"-19"
Waist16"-17"17"-18"18"-19"
Hip17"-18"18"-19"19"-20"
Inseam6.5"7.5"8.5"
Torso23"-25"26"-27"28"-29"

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Apparel Sizing Tips:

Use these tips as a general guide when finding your measurements:

Chest/Bust: With your arms at your sides, measure around the fullest part of your chest, across shoulder blades and under arms.

Waist: To measure your natural waistline, wrap the tape so it intersects your navel. Keep tape flat, but comfortably loose.

Hips: Stand with your heels together and measure the fullest part of your hips. Make sure the measuring tape is level all the way around your body.

Inseam: Stand up straight, and start the tape measure high in your crotch. Straighten the tape down the inside of your leg to the bottom of your ankle.