Somewhere along the line, summer-music-festival fashion went from blissful boho—you know, flower crowns, gladiator sandals, and clashing prints—to full-on authentic early-1970s cool.

Squamish Valley Music Festival style sponsor Topshop’s outfits are all swingy suede fringe, wide-brimmed but structured Anita Pallenberg–style hats, retro crochet, and flared jeans—yes, flares, but not the wide bell-bottoms Sonny and Cher once wore. Think badass Allman Brothers with a little Marianne Faithfull and some Black Mountain thrown in when you’re putting together your outfit for the outdoor concerts running August 7 to 9.

“I love just how well the ’70s and the festival vibe go together,” explains Topshop style ambassador and Tobruckave.com blogger Kiara Schwartz, decked out in one of the store’s new black fringed suede vests, its long tassels swinging over a pair of high-waisted faded-denim short-shorts with braid details and a feminine, off-the-shoulder, tie-strap white blouse. She’s rocking this and other looks for the Straight at the downtown Hudson’s Bay store Topshop location, in its personal-shopping dressing rooms. “Suede gives the look a more ’70s glamour.”

The must-have Topshop vest has a raw edge along the bottom ($140). Opt for other suede looks in tan or rust, or go for a fringed jacket for $280 to $400.

In all, the store’s summer-music-fest looks are simpler and vintage-true.

“Prints have died down a little bit—it’s more one focus piece that will be printed,” advises Eve Obayoriade, Topshop-Topman personal shopper, who can put a festival look together for you at the downtown Hudson’s Bay location.

Agrees Schwartz: “There’s less mixing prints this year and more simple matching solids. A couple years ago, I would have been honing in on plaids and florals.”

Even the hats are less Faye Dunaway–floppy and more structured, Obayoriade points out, showing a Squamish-perfect two-tone black-and-tan felt hat with a Klute-feeling belt above its brim.

Festival bling, too, is toned down; Schwartz loves fringed silver necklaces. “Last year was more about costume jewellery; this year, it’s more about structure,” says Obayoriade.

Check out this dramatic silhouette: Schwartz rocks a pair of flared, black crochet pants ($60) with rust suede clogs and a billowy chiffon blouse in the same hue. “The key to these pants is you need something flowy and long on top,” she says.

If you prefer to rock jeans, prepare not just for those flares but for the kind of high waists they were wearing around the time Sabbath was hitting the charts. Schwartz pairs them with the sexy, tan , sleeveless Suedette Pinafore Top ($80); it has a split back and a square neck, with metal eyelets at the straps.

Those wide-bottom jeans demand a bit of a heel, and Topshop’s clogs are a perfect, chunky option (about $85 to $90). Schwartz loves the snakeskin or fringed black booties (both $140) with the season’s denim cutoff short-shorts.

Best of all, these 1970s-rock-inspired pieces will look good well past Squamish fest’s final day. “A lot of the stuff for festivals is easy to incorporate into your regular wardrobe,” says Obayoriade. Case in point: she’s wearing the black fringed vest over a stunning royal-blue sleeveless dress with pointy, lace-up black flats.

Most of all, don’t think of Squamish fest as a costume party—unless, of course, you’re planning to wear your favourite unicorn headpiece or pink bunny suit.

“Some people get completely dressed up in something different for a festival,” Schwartz says, “but it’s just about being your authentic self.”

Or at least your authentic 1970s self.