KastKing Sol Armis UPF 50 Boonie Hat
- UPF 50 sun protection
- Boonie style, nylon fabric
- Adjustable fit, elastic closure
- Lightweight, medium stretch
- Water resistant, machine wash
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lightweight nylon boonie hat with rated sun protection for fishing, hiking and the beach. It has an adjustable fit but no head size range listed.
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ASIN: B07PWWN8PMCategory: Fishing Hats
Overview
Wearing a wide-brim boonie shades the face and neck, and this nylon one adds a UV protection rating. An elastic closure adjusts the fit, and the fabric is lightweight and breathable.
Sun protection and breathable fabric are the reason to look at it for long days on the water. The limitation is the listing, which gives no head circumference range, brim width or color options beyond silver mist.
Who it's for
Anglers, paddlers and hikers who spend hours in the sun get a light hat. People with a very large or very small head should confirm fit first.
Pros and cons
- Lightweight and breathable
- Adjustable elastic closure
- Head size range not listed
- Brim width not listed
- Waterproof claim conflicts with water resistant
Performance notes
Tightly woven nylon blocks ultraviolet light, and the brim shades the face and neck. Light fabric lets heat escape, while the elastic closure holds the hat in a breeze.
Specifications
| Brand | KastKing |
|---|---|
| Dimensions & fit | |
| Apparel Fabric Weight Class | Lightweight |
| Construction & materials | |
| Material Type | Nylon |
| Apparel Fabric Stretch | Medium stretch |
| Color | Silver Mist |
| Other details | |
| Ultraviolet Protection Factor | UPF 50 |
| Fit Type | Adjustable |
| Apparel Closure Type | Elastic |
| Water Resistance Level | Water resistant |
| Product Care Instructions | Machine wash |
| Style Name | Boonie |
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Frequently asked questions
Will the KastKing Sol Armis fit a large head?
The fit is listed as adjustable with an elastic closure, but no head circumference range is given.
Is the KastKing hat waterproof?
The water resistance level says water resistant, though another line says waterproof.
Can I machine wash the KastKing hat?
Yes. The care line says machine wash.