
📏 Unisex Polo Shirt — Size Guide
Polo Shirt — Size Guide
All measurements refer to product dimensions. The K500 runs large — when in doubt, size down.
Product dimensions · not body measurements
How to Measure
- Width: Measured flat across the chest from armhole seam to armhole seam.
- Length: From the highest point of the shoulder (neck seam) straight down to the hem.
- Sleeve length from center back: From the center back neck, across the shoulder, to the end of the sleeve.
- Compare these measurements with a polo or shirt you already own and love the fit of.
| Measurement | S | M | L | XL | 2XL | 3XL | 4XL | 5XL |
|---|---|---|---|---|---|---|---|---|
| Width (cm) | 52.00 | 54.60 | 59.70 | 64.80 | 68.60 | 72.40 | 76.20 | 80.00 |
| Length (cm) | 73.70 | 76.20 | 78.70 | 81.30 | 83.80 | 85.00 | 86.40 | 87.60 |
| Sleeve length from center back (cm) | 50.80 | 52.70 | 53.30 | 56.00 | 57.20 | 58.40 | 59.70 | 61.00 |
| Measurement | S | M | L | XL | 2XL | 3XL | 4XL | 5XL |
|---|---|---|---|---|---|---|---|---|
| Width (in) | 20.47 | 21.50 | 23.50 | 25.51 | 27.01 | 28.50 | 30.00 | 31.50 |
| Length (in) | 29.02 | 30.00 | 30.98 | 32.01 | 32.99 | 33.46 | 34.02 | 34.49 |
| Sleeve length from center back (in) | 20.00 | 20.75 | 20.98 | 22.05 | 22.52 | 22.99 | 23.50 | 24.02 |
* All measurements refer to product dimensions (not body measurements). The Port Authority K500 runs large — size down if in doubt.



Why MVM SitHappens?
3 Reasons Dog Lovers Choose Us

Their Name, Not Just a Design
Problem: A plain breed shirt could belong to anyone.
Solution: We embroider your dog's own name below the motif, so the polo is unmistakably yours. Just type the name at checkout and we stitch it in exactly as you enter it.

Stitched, Not Printed
Problem: Printed names crack, peel and fade after a few washes.
Solution: Every name is embroidered directly into the fabric with premium thread. The stitching keeps its color and texture for years, wash after wash.

Comfort That Holds Its Shape
Problem: Cheap polos lose their collar and fit after the first wash.
Solution: Silky 65/35 piqué with a flat knit collar, metal buttons and side vents keeps you comfortable and polished, from the dog park to dinner.