KastKing Sol Armis UPF 50 Boonie Hat
- Fishing Hat
- SPF 5
- Sun Hat
- Elastic
- Better rated than 69%
- More reviewed than 98%
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.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
Colors Available
Need a different one? Pick on Amazon →
How it ranks among the 122 fishing hats we track
4.6★ across 14,400 Amazon ratings, Bayesian-smoothed toward the category average.
14,400 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 122 fishing hats we track - how the scorecard works · full fishing hats data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
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.
Strengths and trade-offs
Drawn from this product's published specifications.
- 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 | |
| Sleeve Length Description | Sleeveless |
| Fit to Size Sentiment | Positive |
| Apparel Fabric Weight Class | Lightweight |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Fabric Type | Light-weight breathable material |
| Material Type | Nylon |
| Color | H: Seafoam |
| Apparel Fabric Stretch | No Stretch |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Sun Protection | SPF 5 |
| Hat Form Type | Sun Hat |
| Apparel Closure Type | Elastic |
| Fit Type | Adjustable |
| Sport Type | Fishing, Hiking |
| Occasion Type | Beach,Fishing,Hiking,Safari |
| Number of Items | 1 |
| Is Waterproof | Yes |
| Additional Features | Sun Protection |
| Pattern Style | Camouflage |
| Theme | Sport |
| Pattern | Camouflage |
| Water Resistance Level | Water Resistant |
| Product Care Instructions | Machine Wash |
| Recommended Uses For Product | No |
| Seasons | Summer |
| Ultraviolet Protection Factor | UPF 50 |
| Style Name | Safari |
| Item Type Name | Sun Hat |
Other KastKing fishing hats
How it compares
This product against the closest alternatives we track in fishing hats.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| KastKing Sol Armis UPF 50 Boonie HatThis product | 4.6 / 5 | 14,400 | 4.3 / 5 |
| Home Prefer Outdoor UPF50+ Mesh Sun Hat Wide Brim Fishing Hat with Neck Flap Sun Hat for…Home | 4.7 / 5 | 10,800 | 4.5 / 5 |
| Sun Hat for Men Women with Neck FlapSun | 4.6 / 5 | 4,100 | 4.3 / 5 |
| ZOORON Women's Ponytail Safari Sun HatZOORON | 4.6 / 5 | 3,600 | 4.4 / 5 |
| Outdoor Wide Brim Sun Hat with 2 Solar Fan Sun Bucket Hat for Men Women UPF 50+ Bucket…Outdoor | 4.6 / 5 | 2,900 | 4.4 / 5 |
Similar fishing hats from other brands
Questions about the KastKing fishing hats
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
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.