
MLB Jersey Size Guide | UJerseyMLB
How to find your perfect fit
At ujerseymlb.com, we want you to be game-day ready with the perfect fit. Based on our customers' feedback and the athletic cut of our jerseys, we strongly recommend ordering one size up if you prefer a more comfortable, relaxed fit.
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Men's MLB Cool Base Jersey (Unit: inch)
| Size | Front Length | Back Length | Chest | Shoulder |
|---|---|---|---|---|
| S | 28.7 | 29.9 | 44 | 18.9 |
| M | 29.9 | 31.1 | 45.2 | 19.9 |
| L | 31.1 | 32.3 | 46.4 | 20.9 |
| XL | 32.3 | 33.5 | 47.6 | 21.9 |
| XXL | 33.5 | 34.7 | 48.8 | 22.9 |
| XXXL | 34.7 | 35.9 | 50 | 23.9 |
Women's MLB Jersey (Unit: inch)
| Size | Front Length | Back Length | Chest | Shoulder |
|---|---|---|---|---|
| S | 24.4 | 25.6 | 39.2 | 16.5 |
| M | 25.6 | 26.8 | 40.4 | 17.5 |
| L | 26.8 | 28 | 41.6 | 18.5 |
| XL | 28 | 29.2 | 42.8 | 19.5 |
| XXL | 29.2 | 30.4 | 44 | 20.5 |
Youth MLB Jersey (Unit: inch)
| Size | Front Length | Back Length | Chest | Shoulder |
|---|---|---|---|---|
| S | 24 | 25.6 | 34.6 | 15 |
| M | 25.2 | 26.8 | 35.8 | 16 |
| L | 26.4 | 28 | 37 | 17 |
| XL | 27.6 | 29.2 | 38.2 | 18 |
Still need help with sizing?
Our dedicated support team is here to ensure you get the perfect fit for your favorite team's jersey.
Contact us at: [email protected]
- Stock: In Stock
- Model: 9520040
- Weight: 0.50kg
- Type: MLB
This offer ends in:
Available Options

Embrace the Power of the Polar Bear
When Pete Alonso steps up to the plate, the energy in the ballpark is palpable. Now, you can channel that same electrifying presence with the Men's New York Mets Pete Alonso Black Big & Tall Pop Fashion Jersey. This isn't just apparel; it's a statement of unwavering support for one of baseball's most dynamic sluggers. Designed for the dedicated fan, this jersey lets you carry the spirit of Flushing Meadows wherever you go, celebrating Alonso's power and the enduring legacy of the Mets.
Sharp Style for Every Fan
Crafted for comfort and designed for impact, this black fashion jersey features a bold, script "Mets" across the chest and Alonso's iconic name and number "20" emblazoned on the back. The vibrant royal blue accents pop against the sleek black fabric, creating a look that's both classic and contemporary. Constructed with high-quality materials and featuring crisp tackle twill stitching, this jersey ensures you'll look and feel like part of the team. The "Big & Tall" fit offers superior comfort and a flattering silhouette, making it the ultimate way to showcase your Mets pride.
- Material: 100% Polyester
- Embroidered fabric applique
- Embroidered graphics
- Sizing Tip: Product runs true to size
- Cool Base technology is made with interlocking moisture-wicking fabric for a lightweight, breathable feel.
- Flex Base uniform system reduces overall jersey weight and enhances mobility.
- Patented mesh Air Belt™ for better air flow and less bulk under pant line
- Heat-sealed MLB Flex Base jock tag above left hem
- Stitched tackle name and number on back of jersey
- Stitched tackle number on front of jersey (where applicable)
- Embroidered team patch on sleeve (where applicable)
- Rounded hem
- Sewn-on tackle twill graphics
- Worn by players on-field
- Machine wash
- Imported
Shipping Guide
Shipping time varies by location. These are our estimates:
Normal Orders Custom Orders Processing Time 2 – 3 days 3 – 7 days Shipping Time Frame 12 – 18 days 12 – 18 days Total 14 – 21 days 15 – 26 days