Youth Shirts

Youth shirts are usually sized YS, YM, YL and YXL. As a general guide, YS fits around ages 6 to 8, YM around 8 to 10, YL around 10 to 12 and YXL around 12 to 14. Chest size and height matter more than age, so check each brand’s size chart in our youth shirts.

It’s not required, but it helps. A youth compression or fitted undershirt, like the Under Armour Boy’s HeatGear Armour Long Sleeve, wicks sweat, prevents chafing under the jersey and protects the arms when sliding. For young beginners, a simple training tee is enough.

Most kids wear a short or long-sleeve undershirt, often in a team colour to match the uniform. A 3/4 sleeve shirt, like the UA Boy’s Utility 3/4 or Easton 3/4 Sleeve Raglan, is a classic choice. Check with the coach, since many teams ask for the same colour.

Early-season games in Canada can be cold. A youth ColdGear shirt, like the UA Boys’ ColdGear Armour Mock, keeps the body and neck warm under the jersey. Add a youth jacket for the dugout and a youth player sleeve for young pitchers.

Baseball tees and hoodies are always a hit, like the UA Bryce Harper BH34 Icon tee, Marucci Youth Dugout Tee or the Easton Spring Break collection, available in boys’ and girls’ hoodies. Young fans can also check out our youth MLB apparel.

Once your child outgrows YXL, move to adult XS or S in our men’s shirts or women’s shirts. Compression shirts should stay snug, so don’t size up too far.

We carry youth shirts from Under Armour, Rawlings, Easton and Marucci.