The Kavu Fisherman's Chillba hat has potential but ultimately falls short.  First the positives: The design of the hat is unique, straddling the delicate line between cool & geeky.  It's much like a traditional fisherman's bucket hat, but the transition from the top of the hat to the brim is just a gentle curve, leaving no distinct separation between the top & bottom portions of the hat.  It's an interesting look, and I kind of liked it.  Second, the hat is wonderfully portable.  It stores completely flat with no problem & no loss of shape, or it can be compressed down into a small form factor via it's flexible wire brim.  It would travel equally well in a suitcase or in a backpack or tackle box.  Finally, the hat is not advertised as such but I found it to be reversible.  I picked up an olive colored hat & simply turned it inside out & cut off the tags and voila - I now had the option of a black hat too.  The chin strap is only functional right side out, but even when reversed it's no problem to tighten the strap and have it rest on the top of the brim.  Pretty cool!

Now for the negative, and there is only one but it is a deal breaker for me: the hat is simply not breathable.  I wore it for the first time doing some landscaping in my yard on a hot day, and when I broke a heavy sweat digging up some shrub roots, the hat got unpleasantly wet.  It is made of a lightweight nylon but it just doesn't breathe.  I kept having to take it off to shake some of the perspiration out and found it to be unpleasant to wear due to the moisture and lack of fresh airflow on my noggin.

Too bad the Kavu Fisherman's Chillba doesn't breathe, otherwise it would be a great hat for sun protection.  I suppose if you plan to use it in an environment with mild temperatures it could serve you well.  But for those like me who foresee most of its use coming in hot weather, I'd pass on it.  If you're looking for a better hot weather option, I'm a fan of the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Columbia-Sportswear-Men-s-Bora-Bora-Booney/dp/B004ISKEWY/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Columbia Sportswear Men's Bora Bora Booney</a>.  Similar kind of hat but with some mesh that allows it to breathe.  It lacks the more resilient kind of wire brim but ultimately wins out by giving your head some breathing space.