
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.
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- Stock: In Stock
- Model: 9712593
- Weight: 0.50kg
- Type: MLB
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Available Options

Embrace the Emerald City Spirit
Step onto the diamond in spirit with the Men's Seattle Mariners Josh Naylor Nike White Home Replica Jersey. This isn't just apparel; it's a declaration of your allegiance to the Mariners and a tribute to the grit and determination of players like Josh Naylor. Feel the energy of the Pacific Northwest and the roar of the crowd every time you put it on, connecting you directly to the team's journey and the passionate fanbase that makes Seattle baseball so special.
Authentic Design, Unmatched Style
Crafted with precision, this replica jersey features the iconic Mariners' white home design, accented with deep navy and vibrant teal. The official team name and Josh Naylor's name and number are proudly displayed in crisp tackle twill stitching, mirroring the look worn on the field. A bold Nike Swoosh graces the chest, signifying premium athletic apparel, while the official MLB emblem ensures authenticity. This jersey is your ticket to capturing the classic Seattle Mariners aesthetic.
Embrace the Emerald City's Spirit
Step onto the diamond, or into the stands, with the undeniable swagger of Seattle. This Men's Seattle Mariners Nike White Home Replica Jersey, bearing the name and number of Josh Naylor, is more than just fan apparel; it's a declaration of your allegiance. Channel the energy of the Pacific Northwest and the electric atmosphere of T-Mobile Park every time you pull it on. Feel the connection to every soaring fly ball and every clutch hit as you represent the Mariners with pride.
Authentic Mariners Craftsmanship
Crafted with the signature quality of Nike, this jersey features the iconic Mariners' 'Northwest Green' and navy blue accents against a crisp white backdrop. The 'MARINERS' script across the chest and Naylor's name and number on the back are meticulously rendered in tackle twill stitching, ensuring a look and feel that mirrors the on-field originals. Subtle Nike branding and official MLB tags complete this essential piece for any dedicated Mariners fan.
- 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