The shine on the wrinkles layer gives a cool 'silky' feeling to the fabric.
The G-string tanning mark is optional (underpants layer) so you can do without it after a few days of wearing these "crack-showing cut" pants, perfect for chilling on the beach.
They go in 5 colours (see attached) and as usual for a low price of 70L$.
This latest line of products is available in the FD Showroom in-world at
http://slurl.com/secondlife/Sagwa/171/44/281
as well as on SLX
http://www.slexchange.com/modules.php?name=Marketplace&MerchantID=82622
Enjoy.