UA Tech™ is our original go-to training gear: loose, light, and it keeps you cool. It's everything you need.

Keeps You Cool
Fast-Drying
Moisture Wicking

Product Details

UA Tech™ fabric is quick-drying, ultra-soft & has a more natural feel
Material wicks sweat & dries really fast
Many UA Tech™ T's are made with recycled, traceable polyester & re-use about 5 bottles per shirt

Size & Fit

Loose: Fuller cut for complete comfort.

Size & Fit Guide

How to measure

CHEST: Place 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.

Size Chart

Size Chart (Centimeters)
Size	US Sizes	CHEST (cm)	WAIST (cm)	HIPS (cm)	HEIGHT (cm)
YXS	7	63 - 66	58 - 61	66 - 69	119 - 128
YSM	8	66 - 69	61 - 63	69 - 71	128 - 135
YSM+	8+	70 - 74	69 - 71	74 - 77	128 - 135
YMD	10 - 12	69 - 74	63 - 69	71 - 79	135 - 150
YMD+	10+/12+	74 - 79	71 - 79	77 - 85	135 - 150
YLG	14 - 16	74 - 83	69 - 76	79 - 86	150 - 165
YLG+	14+/16+	79 - 88	79 - 86	85 - 93	150 - 165
YXL	18 - 20	83 - 90	76 - 84	86 - 94	165 - 178
YXL+	18+/20+	88 - 95	86 - 94	93 - 100	165 - 178

Size Chart (Inches)
Size	US Sizes	CHEST (in)	WAIST (in)	HIPS (in)	HEIGHT (in)
YXS	7	25 - 26	23 - 24	26 - 27	47 - 50½
YSM	8	26 - 27	24 - 25	27 - 28	50½ - 53
YSM+	8+	27.5 - 29	27 - 28	29 - 30½	50½ - 53
YMD	10 - 12	27 - 29	25 - 27	28 - 31	53 - 59
YMD+	10+/12+	29 - 31	28 - 31	30½ - 33½	53 - 59
YLG	14 - 16	29 - 32.5	27 - 30	31 - 34	59 - 65
YLG+	14+/16+	31 - 34.5	31 - 34	33½ - 36½	59 - 65
YXL	18 - 20	32.5 - 35.5	30 - 33	34 - 37	65 - 70
YXL+	18+/20+	34.5 - 37.5	34 - 37	36½ - 39½	65 - 70

Specs & Care

Style #: 1363283
Raglan sleeves
100% Polyester
Imported
Wash garment inside out
Machine wash cold with like colors
Use only non-chlorine bleach when needed
Tumble dry low
Do not iron
Do not use softeners
Do not dry clean

Reviews(718)

4.9

Recommended: 99%

5

505

4

38

3

6

2

1

3

718 Ratings

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

Images from Customers

First Pick

pdterr

3 days ago

This was the first pick of new clothing my grandson grabbed when I showed him the clothes I'd gotten for hm.

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

Location: OK

Reviews: 1

Votes: 0

MoreLess

Helpful?

0

Nice Shirt

Lsmom83

8 days ago

Deep bold green color, great Under Armour color, my son loves it!

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

Location: MO

Reviews: 1

Votes: 0

MoreLess

Helpful?

0

Great fit

Kathy H

2 months ago

My 10 year old loves these shirts!

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

Location: Oak Ridge Tn

Reviews: 1

Votes: 0

MoreLess

Helpful?

0

Q&A(4)

What size is YSM? I need a size 8.

Sunpatt

last year

YSM equates to size 8. Please copy and paste the following link to see our Size and Fit Guide: https://www.underarmour.com/en-us/t/size-chart/boys-tops/

UA Expert Shaz W

last year

Helpful?

0

shirt measurements in inches or cm ---not how to measure!!!!! have a boy who fits into nothing due to fast growth spurt. I know how to measure but all shirts for boys give no measurement guides!!!

kjdmph

2 years ago

For sizing information, please go to our size and fit guide. The link can be found at the bottom of the homepage at UA.com. Here you will find equivalent sizes according to measurements.

UAExpert

2 years ago

Helpful?

0

What size does ym?

Janet Baldridge

3 years ago

Size YMD is a US size 10-12.

UAExpert

3 years ago

Helpful?

0

UA Tech™ Big LogoBoys' Short Sleeve

Product Description

UA Tech™ Big Logo
Boys' Short Sleeve