I've Just Discovered Something New

Columbia Men's Bonehead Short Sleeve Shirt,Sail Red,L
Cool Short Sleeve Shirt
I've just discovered something new
I think you'll say it's overdue
No more hot tee-shirts hitherto
A fashion's back that grandpa knew

With this device I can undo
My shirt and let the breeze flow through
Just listen up I'll tell to you
This secret you'll wish to pursue

prAna Men's Dna Short Sleeve Shirt, Khaki, X-Large
Cool Short Sleeve Men's Shirt
The polo shirt I do eschew
It's hot and it just sticks to you
In summer weather it won't do
It cooks you just like Irish stew

And so this secret's overdue
So listen up and I'll tell you
It's called a button — sh it's true
It also comes with rave revue