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.
This vented UPF 50 boonie hat pairs a drawcord with a separate chin strap so it stays put in wind, built for extended time outdoors rather than casual short trips.
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ASIN: B07PWWN8PMCategory: Fishing Hats
Overview
KastKing's Sol Armis boonie hat carries a UPF 50 rating, mesh side vents, a moisture-wicking headband, and both a drawcord and chin strap for fit. It's built as a one-size sun hat for fishing, hiking or beach use.
UPF 50 blocks the large majority of UV rays reaching the skin, which is the functional core of a sun hat like this rather than the camo pattern branding around it. Pairing an internal elastic drawcord with an external chin strap covers both fine-tuning fit to head size and keeping the hat on in wind.
- UPF 50 rated sun protection
- Mesh venting on the sides for airflow
- Moisture-wicking internal headband
- Adjustable drawcord plus separate chin strap
Who it's for
Anglers, hikers and anyone spending hours outdoors get the most from the UV coverage and the chin strap that keeps it on in wind. Not the pick for someone who wants a structured, stiff-brim hat, since this is a soft mesh-vented boonie style.
Pros and cons
- UPF 50 rated for sun protection
- Mesh side vents for airflow
- Both a drawcord and chin strap for a secure, adjustable fit
- One-size design may not suit very small or very large heads well
Performance notes
The mesh side panels let air move through the crown to reduce heat buildup, while the moisture-wicking headband is meant to keep sweat from running into the eyes. Fit is set two ways: an internal elastic drawcord adjusts the headband circumference, and a separate chin strap holds the hat against wind once the fit is set.
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 | Medium 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 | Animal Print |
| Occasion Type | Beach,Fishing,Hiking,Safari |
| Number of Items | 1 |
| Pattern | Animal Print |
| Seasons | Summer |
| Product Care Instructions | Machine Wash |
| Theme | Sport |
| Style Name | Boonie |
| Additional Features | Sun Protection |
| Recommended Uses For Product | No |
| Style Number | Sun Hat-1 |
| Item Type Name | Sun Hat |
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Frequently asked questions
What UV protection rating does the KastKing Sol Armis hat have?
It's rated UPF 50, intended to block the large majority of the sun's UVA and UVB rays.
Does the KastKing Sol Armis boonie hat stay on in windy conditions?
It has a separate adjustable chin strap in addition to the internal drawcord, which is meant to keep the hat from blowing off.
Is the KastKing Sol Armis hat one size fits all?
Yes, it uses an internal elastic drawcord to adjust the headband to fit different head sizes.