Nammu Extra UV Pro Square
UPF 50 Sun Protective swim hat
$22.95
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Adjustable Band: Keeps the hat securely in place during water activities
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Breathable Fabric: Snug yet comfortable fit. and Quick-Drying for ultimate comfort
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UPF 50+ Sun Protection for added safety
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Suitable for EVERYONE swimmers, water sports enthusiasts, and adaptive needs
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Classic: Fits most adults and kids aged 2+
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XL: Ideal for larger heads (over 21.5” / 54.6 cm). Note: Not all hats come in XL sizes
Description
The Nammu EX UV Pro Square delivers the extra coverage of the EX UV Pro line in a clean, streamlined silhouette — the square back design shields more of your neck than a standard hat, with none of the bulk.
What makes the square back different
Most swim hats have a triangular cutout at the back. The EX UV Pro Square’s flat square back covers the entire nape of your neck — the strip of skin that faces directly skyward when you’re snorkeling, paddling, or swimming laps. Combined with UPF 50+ fabric that blocks 98% of UV rays, you get meaningful extra protection without changing how the hat feels or fits.
Built for real water use
The adjustable tie-back keeps the hat locked in place through waves, dives, and current. The nylon-spandex fabric dries in minutes and doesn’t stiffen, sag, or lose shape after repeated use in salt water or chlorine. One reviewer wore it snorkeling in Curaçao and praised how it kept both scalp and neck protected for hours in the tropical sun.
Who it’s for
The EX UV Pro Square is a strong choice for snorkelers, open-water swimmers, and kayakers who want reliable neck coverage without the ear flaps. It’s also popular with alopecia and chemo patients who need dependable scalp protection outdoors.
Available in Black and Blue. One Size fits most adults and kids 2+; XL available for heads over 21.5″ / 54.6 cm. See the size guide before ordering.
Additional information
| Color | |
|---|---|
| Size | |
| Material | 20% Spandex, 80% Nylon |
19 reviews for Nammu Extra UV Pro Square
| 5 star | 84% | |
| 4 star | 10% | |
| 3 star | 5% | |
| 2 star | 0% | |
| 1 star | 0% |
My Nammu swimming hat helped protect my scalp and neck from the tropical sun during many hours of snorkeling during a recent vacation in Curacao. It also kept my hair dry, and it’s a lot cuter than a typical swim cap.
Nice build quality but the XL is not nearly large enough. Is it really EXTRA large? Delivery was slower than hoped for.
What a fabulous product!!! Perfect for upcoming Philippine vacation!!!
Not used yet (snorkeling), but feels secure and easy to put on