Some Arc Raiders skins are sold in the in-game store for premium currency, which can be earned in the battle pass and during events, while some cosmetics are sold directly for real money.
Recently, Embark Studios began teasing such a premium set:
The cosmetic set is called Wasp Hunter, and its design uses elements of ARC robots.
Judging by the comments, many were pleased with this skin style, but some doubt that this look corresponds to the game's lore.