VANCOUVER, CANADA — The sun shining through the blinds of costume designer Katia Stano's workshop illuminates every particle of dust and lint floating through the air. It makes the room seem cloudy and suffocating — fitting, though, considering that's exactly the world in which the characters on CW's The 100 live.

It's Stano and her costume army's job to bring that dark and dreary aesthetic to the screen, a task that comes with unique challenges in the post-apocalyptic, action-packed world of The 100, a show that begins its second season Wednesday night.

On this day, Stano and Co. are at work putting together costumes for "city grounders" — a new tribe of people that will be introduced this year. As with the groups we've met so far — the space-born of The Ark, the Reapers, etc. — the new batch of grounders will have costumes that reflect the world and atmosphere they live in. Clothes made using pieces of tires and cement.

"There's no Barneys, no Nordstrom, no Target," Stano says. "So everything that has been left over from the post-apocalyptic war has been war to shreds and they have repurposed everything."

Stano gave Mashable a tour of the costume shop. Those photos are below.