(Photo: DC Entertainment)

Arrow costume designer Maya Mani shared some of the details of Oliver Queen’s new costume with Fashionista.

"I wanted it to be tactical, so the shoulders are a little tougher," she explained. "I also wanted him to be able to remove a layer or be in the layer and still be the Arrow, but not have the full fig on." Mani’s original costume redesign included sleeves, but executive producer Greg Berlanti and star Stephen Amell convinced her to try a sleeveless look closer to the comic book source material.

Felicity will also be getting wardrobe change, now that she’s a CEO, but don’t expect her to be all business. "We still want to maintain that sense of fun," said Mani. She also teased that Season 4 will show off a side of Felicity fans haven’t seen before. "Now that we see her in her home, we have more opportunity to show a casual side of her, which in the past we haven't had a chance to do.”

Arrow Season 4 premieres at 8 p.m. on Wednesday, Oct. 7 on the CW.