PORTSMOUTH — For a new fashionable twist in its second Form + Function Artisan Fair this weekend, 3S Artspace is welcoming six Project Upcycle fashion designers to share their takes on re-fashioned clothing.

Guests can browse racks to find one-of-a-kind pieces with everything from a punk-rock edge to elegant and classic lines, all hand-crafted by designers who have previously competed in 3S Artspace’s Project Upcycle competition and runway event.

Part of a trend in “sustainable fashion,” the challenge had competitors upcycling second-hand clothing into gala-worthy outfits on the runway.

The Form + Function Artisan Fair will take place Saturday and Sunday from 10 a.m. to 4 p.m. in the gallery, performance space and lobby at 3S Artspace, 319 Vaughan St.

It’s a holiday shopping marketplace of handmade finds by more than 25 artisans and makers from the Seacoast and beyond. Display booths will feature textiles, housewares, jewelry, metal-work, accessories, ceramics and prints.

“3S does an amazing job of curating this celebration of local designers, doers and dreamers,” said jewelry artisan Amy Vander Els. “The Portsmouth community is so supportive of the arts and of shopping small, local, and handmade. Plus there will be drinks, live music, and Barrio tacos. It is one of my very favorite shows of the year.”

For more information, visit 3sarts.org.