The GOODlightweight, packs flat, Amazon description claims UPF 50, good ventilation, one size does seem to fit all (or at least most), lots of colors to choose from, chin strap with easy adjustment, head band adjustment, and the fantastic price. The NOT QUITE AS GOODno UPF certification on the actual hat itself, the ventilation might allow some sun on a bald head (if this is you Id suggest sunscreen as a backup), and brim tends to fold up or down in moderate ocean breezes. BOTTOM LINEA decent hat that offers sun protection at prices so low you could have a different color for each day of the week. Is it as good as my tried and true Tilley that has floated in three oceans and numerous bays, rivers, streams and protecting my dome from blistering sun and pouring rain? No. But, Camo Coll does a good job at a tiny fraction of the cost. Great for yard work or for situations where a lost hat is a distinct possibility.