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The Mongo XL Foam Trucker hat is the perfect trucker hat for big heads. Classic trucker hat construction provides a deep, cozy fit around the crown. Your big head will also enjoy staying cool and dry with strong side mesh ventilation. The foam front panels provide a stylish, cushy feel that will keep your big head happy all day long. It’s why many consider it the best gym hat for big heads. Choose between all black or olive green.
Designed to fit hat sizes 7 1/2 to 8 1/2 — head circumference 23.6–26.7 in (60–68 cm). View the size chart below if you don't know your head size.
Measure around your head just above the ears and eyebrows. If you land anywhere in this range, this hat fits.
| Fits hat sizes | 7½ – 8½ (XL–2XL) |
|---|---|
| Head circumference | 23.6–26.7 in · 60.0–68.0 cm |
| Crown | Structured foam front, mesh back |
| Brim | Pre-curved brim |
| Panels | 5 |
| Closure | Adjustable snapback (extended range) |
| Care | Hand wash in cold water with mild detergent; no bleach, no machine wash or dryer; air dry crown-up |
Not sure of your size? How to measure your head · Printable size chart
How this product fits and feels.
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Measure around your head just above the ears and eyebrows. If you land anywhere in this range, this hat fits.
| Fits hat sizes | 7½ – 8½ (XL–2XL) |
|---|---|
| Head circumference | 23.6–26.7 in · 60.0–68.0 cm |
| Crown | Structured foam front, mesh back |
| Brim | Pre-curved brim |
| Panels | 5 |
| Closure | Adjustable snapback (extended range) |
| Care | Hand wash in cold water with mild detergent; no bleach, no machine wash or dryer; air dry crown-up |
Not sure of your size? How to measure your head · Printable size chart
How this product fits and feels.
Measure around your head just above the ears and eyebrows. If you land anywhere in this range, this hat fits.
| Fits hat sizes | 7½ – 8½ (XL–2XL) |
|---|---|
| Head circumference | 23.6–26.7 in · 60.0–68.0 cm |
| Crown | Structured foam front, mesh back |
| Brim | Pre-curved brim |
| Panels | 5 |
| Closure | Adjustable snapback (extended range) |
| Care | Hand wash in cold water with mild detergent; no bleach, no machine wash or dryer; air dry crown-up |
Not sure of your size? How to measure your head · Printable size chart
How this product fits and feels.

EXTRA LARGE DEEP FIT
Deeper crown and better proportions so it sits right—not high, not awkward, just a clean, natural fit.

DURABLE MATERIALS
Premium construction made to handle daily wear without losing shape, structure, or comfort.

LIGHTWEIGHT COMFORT
Ventilated panels and lightweight fabric keep your head cool, dry, and comfortable all day.
Try it on indoors, tags still on. If it's not right, send it back within 30 days—we'll cover the shipping too. No guessing, no risk.
Designed for head sizes 7½ to 8½ — that's a head circumference of roughly 23.6–26.7 inches (60–68 cm). Deeper crown. No tight squeeze. No shallow fit.
Yes. 7⅞ and 8 sit in the middle of MONGO's range, so the snapback closes comfortably with several notches to spare and the crown sits low and natural instead of perching on top.
Most hats scale width, not depth. MONGO hats are built bigger all around—so they sit right, feel better, and actually look good.
Wrap a soft tape measure around your head just above your ears and eyebrows. Anything from 23.6 to 26.7 inches (60–68 cm) fits. If most hats feel tight or sit high, you’re in the right place. You can also check our size chart for exact measurements.
Ships in 1–3 business days with free ground shipping on every US order; most arrive in 3–7 business days. Faster USPS and UPS options are available at checkout.
Returns and exchanges are easy within 30 days—as long as it’s unworn with tags. If it doesn't fit, we cover the return shipping.