The Kid AeroFleece Youth Short Sleeve Hoodie - Ken Griffey Jr. Collection
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Find your fit. All measurements are in inches. Fit is noted on each product page. Relaxed-fit styles (including all hoodies, outerwear and AeroFleece) run roomy, so size down if you prefer a closer fit. Otherwise, order your usual size.
Men's Tops (Tees)*
| Size | XS | S | M | L | XL | 2XL | 3XL |
|---|---|---|---|---|---|---|---|
| Chest | 35 | 38 | 41 | 44 | 48 | 52 | 56 |
| Length | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
Premium material allows for little to no shrink.
*Tees marked Relaxed Fit run roomy: size down for a closer fit. All other tees: order your usual size.
Women's Tops
| Size | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|
| Bust | 35.5 | 36 | 38 | 40 | 43 | 45.5 |
| Body Length | 25.5 | 27 | 28 | 29 | 30.5 | 30.5 |
| Sleeve Length | 7 | 7.5 | 8 | 8 | 9 | 9 |
Sleeve length applies to short-sleeve tees.
Youth Tops (Tees)
| Size | YS | YM | YL | YXL |
|---|---|---|---|---|
| Chest | 16 | 17 | 19 | 20 |
| Length | 22 | 23.5 | 25 | 26 |
Youth tees are true to size. Chest is measured flat, armpit to armpit.
Hoodies & Outerwear
| Size | YS | YM | YL | YXL | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|---|---|---|
| Chest | 32.75 | 34.75 | 36.5 | 38.5 | 45 | 46.5 | 48 | 49.5 | 51.25 |
| Length (back center) | 22.5 | 23 | 23.5 | 24.25 | 28 | 28.75 | 29.5 | 30.25 | 31 |
Sizing is unisex. All hoodies and outerwear are a relaxed fit: size down for a closer fit.
Men's Shorts (Mesh)
| Size | S | M | L | XL | 2XL |
|---|---|---|---|---|---|
| Waist | 28–31 | 31–33 | 33–35 | 36–39 | 40–44 |
| Inseam | 6 | 6 | 6.5 | 7 | 7.5 |
Youth Shorts (Mesh)
| Size | YS | YM | YL | YXL |
|---|---|---|---|---|
| Waist | 22.5 | 24 | 26 | 28 |
| Outseam (w/ waistband) | 13.5 | 14 | 14.5 | 15 |
Men's Pants (Sweatpants & Joggers)
| Size | XS | S | M | L | XL | 2XL | 3XL |
|---|---|---|---|---|---|---|---|
| Waist | 27 | 29 | 32 | 35 | 38 | 43 | 47 |
| Length | 38.5 | 39 | 40.5 | 41.5 | 43 | 43.5 | 44 |
| Inseam | 30 | 30.5 | 31 | 31.5 | 33 | 33.5 | 34 |
| Hips | 34 | 36 | 38 | 41 | 44 | 47 | 50.5 |
Youth Pants (Sweatpants)
| Size | YS | YM | YL | YXL |
|---|---|---|---|---|
| Waist | 21.5 | 23 | 24 | 25 |
| Inseam | 21.5 | 23.5 | 24 | 25 |
Fitted Caps
| Cap Size | 7 | 7⅛ | 7¼ | 7⅜ | 7½ | 7⅝ | 7¾ | 7⅞ | 8 |
|---|---|---|---|---|---|---|---|---|---|
| Head (in) | 22 | 22⅜ | 22¾ | 23⅛ | 23½ | 23⅞ | 24¼ | 24⅝ | 25 |
| Head (cm) | 55.8 | 56.8 | 57.7 | 58.7 | 59.6 | 60.6 | 61.5 | 62.5 | 63.5 |
Fitted caps follow standard 59FIFTY sizing. Between sizes? Size up.
Adult Snapback Caps
| Size | Fits Hat Sizes | Head (in) | Head (cm) |
|---|---|---|---|
| One Size | 7⅛ – 7¾ | 22⅜ – 24¼ | 56.8 – 61.5 |
Adjustable snap closure.
Youth Snapback Caps
| Size | Fits Hat Sizes | Head (in) | Head (cm) |
|---|---|---|---|
| One Size | 7 and smaller | 22 and smaller | 55.8 and smaller |
One size fits most youth heads. Adjustable snap closure.
How to Measure
- Chest
- Measure across the fullest part of your chest, armpit to armpit.
- Bust
- Measure around the fullest part of your bust, keeping the tape horizontal.
- Length (tops)
- Measure from the top of the shirt (base of the neckline) to the bottom.
- Sleeve length
- Measure from the top of the shoulder to the end of the sleeve.
- Waist
- Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.
- Hips
- Measure around the fullest part of your hips, keeping the tape horizontal.
- Inseam
- Measure from the bottom of the crotch, down the inside of the leg, to the bottom of the leg opening.
- Outseam with waistband
- Measure from the top of the waistband to the bottom of the leg opening.
- Length (pants)
- Stand straight and run the tape along the side of your leg, from waist to ankle or floor.
- Head (caps)
- Wrap a flexible tape around your head about half an inch above your eyebrows and ears, snug but not tight, where the cap's sweatband sits. If you're between sizes, size up.
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The sweetest swing the game has ever seen, now on Baseballism's versatile short sleeve hoodie
AeroFleece Short Sleeve Hoodie
Lightweight Warmth. Diamond DNA.
Built for comfort, movement, and performance on and off the field, the AeroFleece Short Sleeve Hoodie introduces Baseballism’s all-new AeroFleece Fabric — a 280gsm medium-weight blend engineered for moisture control, breathability, and four-way stretch. Designed for the athlete’s lifestyle, it moves with you during workouts, batting practice, or travel days.
A three-panel hood delivers a clean, structured look, while hand warmer pockets keep essentials close and your hands ready between reps. The result is a hoodie that feels athletic, looks elevated, and performs season after season.
Details:
Lightweight Warmth. Diamond DNA.
Built for comfort, movement, and performance on and off the field, the AeroFleece Short Sleeve Hoodie introduces Baseballism’s all-new AeroFleece Fabric — a 280gsm medium-weight blend engineered for moisture control, breathability, and four-way stretch. Designed for the athlete’s lifestyle, it moves with you during workouts, batting practice, or travel days.
A three-panel hood delivers a clean, structured look, while hand warmer pockets keep essentials close and your hands ready between reps. The result is a hoodie that feels athletic, looks elevated, and performs season after season.
Details:
- 280gsm Medium Weight AeroFleece Fabric (45% rayon/48% polyester/7% spandex)
- Moisture-Wicking and Breathable
- Four-Way Stretch Comfort
- Three-Panel Hood Construction
- Hand Warmer Pockets
- Designed for Performance and Everyday Wear
Care Instructions: Machine wash in cold water and tumble dry on low heat to preserve the hoodie’s quality and fit.

