KastKing Sol Armis UPF 50 Boonie Hat
- Ultraviolet Protection Factor: UPF 50+
- Sun Protection: SPF 5
- Hat Form Type: Sun Hat
- Fit Type: Adjustable
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A vented, UPF 50 boonie hat with a chin strap and locking drawcord, built for people who need shade during long outdoor sessions rather than short errands.
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ASIN: B0BGKFSJ7ZCategory: Fishing Hats
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Overview
A wide brim boonie hat rated UPF 50 with mesh side panels, a moisture wicking headband, and a locking drawcord, built for anglers, hikers, and anyone spending long hours in direct sun.
The mesh venting on the sides is what separates this from a plain sun hat, letting air move through on hot days while the brim still blocks overhead glare. It comes in the brand's camo-leaning Prym1 colorway options rather than a single plain tone, aimed at people who spend real time outdoors rather than a short errand in the sun.
- Moisture wicking sweatband at the forehead
- Rear toggle locks the drawcord in place
- Available in Prym1 camo pattern colorways
- Designed for fishing, hiking, and beach use
Who it's for
Fits people who need real shade and airflow for fishing trips, beach days, or hikes, not just a fashion accessory. Less suited to anyone wanting a stiff brim hat that holds its shape in wind, since boonie brims are soft and can fold.
Pros and cons
- UPF 50 sun protection for long days outside
- Mesh side panels add airflow in heat
- Drawcord plus chin strap for a secure fit
- One size design adjusts to different head sizes
- Soft brim won't hold a stiff shape
- No stated packability or fabric weight
Performance notes
The UPF 50 rating comes from the fabric weave itself rather than a coating, so it should hold up wash after wash. Mesh side panels are the main airflow feature, paired with a moisture wicking band at the forehead to manage sweat. The elastic drawcord with a rear toggle and separate chin strap are what keep it on the head in wind rather than relying on a snug crown alone.
Specifications
| Brand | KastKing |
|---|---|
| Dimensions & fit | |
| Apparel Fabric Weight Class | Lightweight |
| Fit to Size Sentiment | Positive |
| Sleeve Length Description | Sleeveless |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type | Nylon |
| Fabric Type | Light-Weight Breathable Material |
| Apparel Fabric Stretch | No Stretch |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Ultraviolet Protection Factor | UPF 50+ |
| Sun Protection | SPF 5 |
| Hat Form Type | Sun Hat |
| Fit Type | Adjustable |
| Apparel Closure Type | Elastic |
| Water Resistance Level | Water Resistant |
| Is Waterproof | Yes |
| Pattern Style | Camouflage |
| Sport Type | Fishing, Hiking |
| Occasion Type | Beach,Fishing,Hiking,Safari |
| Number of Items | 1 |
| Pattern | Camouflage |
| Seasons | Summer |
| Product Care Instructions | Machine Wash |
| Theme | Sport |
| Style Name | Safari |
| Additional Features | Sun Protection |
| Recommended Uses For Product | No |
| Item Type Name | Sun Hat |
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Frequently asked questions
Does the KastKing Sol Armis boonie hat come in one size?
Yes, it's a one size design that adjusts with an internal elastic drawcord and locking rear toggle.
Will the Sol Armis hat block UV rays effectively?
It carries a UPF 50 rating, meaning the fabric itself blocks the large majority of UVA and UVB rays.
Does this hat have a chin strap?
Yes, an adjustable chin strap is included to keep the hat on in wind.