This the Midnight Micromodal Cheeky Panty.  

Micromodal is made from the pulp of beech trees - another plant-based textile we are totally fan-girling.
It’s an incredibly close knit fiber (which makes it so soft) but like many natural textiles it still remains very breathable. The feel of these undies is truly luxurious - lightweight, stretchy and silky smooth.

As as for the style, well The Cheeky is a slim cut undie that gives you more coverage than the Brazilian Panty but less than the Hipster Panty. 
It's the perfect compromise and meets you right in the middle.
If you're looking for a great everyday basic panty, then the Cheeky Panty is for you.