ColdGear®·

Price: $45

ColdGear®
Boys' Long Sleeve

Price: $45

4.9(148)

This item is excluded from any promo codes and offers.

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 (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

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

Ship

In Stock Online

Pick Up

Select A Store

Free Returns & Exchanges

Try it on at home! We offer free returns and exchanges within 60 days if purchased from UA.com, app, or a store location. It’s fast and easy. More Info

We all hate it. That stiff, distracted feeling you get when you're out in the cold. That's why, we built a baselayer that keeps you warm and dry without being bulky or riding up, so you can stay focused all season long.

Keeps You Warm
Ventilated
4-Way Stretch

Product Details

Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior
Stretch-mesh back & underarm panels provide strategic ventilation
4-way stretch material moves better in every direction
Material wicks sweat & dries really fast
Ergonomic design keeps seams off of high abrasion areas
Dropped, shaped hem

Size & Fit

Fitted: Streamlined fit that’s not too tight or too loose.

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 (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

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

Specs & Care

Style #: 1366372
87% Polyester/13% Elastane
Imported
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(148)

4.9

Recommended: 100%

138

148 Ratings

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

What Customers Are Saying:

The compression shirt is well-suited for cold weather activities, providing warmth and comfort without restricting movement.
Customers report it is high-quality, durable, and true to size, making it an excellent base layer.
Many purchased multiple shirts for their children, who found it kept them warm while allowing freedom of movement.
The overall consensus is that this product offers optimal warmth and moisture management for cold weather use.

This AI-generated summary is based on real customer reviews.

Images from Customers

Quality cold gear

ckerr19

10 days ago

Nice quality and neutral color for layering

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

Location: New Braunfels, Texas

Reviews: 1

Votes: 0

MoreLess

Helpful?

Hanna2010

11 days ago

I fits perfectly and my son loves to have it under his jersey.

Comfort

Min

Max

Fit

Runs Small

Runs Large

Performance

Min

Max

Location: Surrey BC

Reviews: 1

Votes: 0

MoreLess

Helpful?

Great quality. Keeps you warm, comfy

Boom1

17 days ago

[This review was collected as part of a promotion.] Great quality. Keeps you warm. Comfy. Recommended for cold weather

Reviews: 1

Votes: 0

Gender: Male

MoreLess

Helpful?

Q&A(5)

I want to purchase a few of these for my grandson, but I read that they cannot be washed with fabric softener. Is that true? And if so, why?

mimi9928

2 years ago

fabric softeners leave a residue on the fabric, and it eliminates its ability of repealing sweat from the body and forcing it out. wow you shouldn't use it for towels either, it makes them less absorbent.

serhot

2 years ago

Helpful?

Does this shirt have thumbholes?

darleen 44

2 years ago

The Boys' ColdGear® Long Sleeve does not have thumbholes.

UAExpert

2 years ago

Helpful?

My son is about a size 14 unfortunately with your new sizing the large fits just right and the xl is huge what would you recommend for this one which will be worn under a soccer jersey?

Diana Frangione

3 years ago

We recommend a large! Please see our Size & Fit Guide for additional assistance with sizing and measurements! https://www.underarmour.com/en-us/size-guide/

UAExpert

3 years ago

Helpful?

How would you rate our products and descriptions?

ColdGear®Boys' Long Sleeve

Product Description

ColdGear®
Boys' Long Sleeve