Duncs23:
Hi there, was this the regular or extra large size?
Novice:
Hey mate,
As far as I'm aware they only come in one size. They are made from a similar material as your normal polo quick dry UV fishing shirts. They are also a little stretchy and get attached to your yak by many adjustable velcro straps.
I haven't used one with a sit on top yak yet but the are the great for any sit in. Once they get wet they also keep your legs cool. Are a must when fishing in summer in shorts.
Cheers, Dave.
Peter4:
Another option is to wear long fishing pants/trousers.
I have been wearing the Columbia ones for years in the middle of summer without dramas. They are lightweight, breathable material that dries quickly if it gets wet and UPF 50+ protection from the sun...