The Model Secret to Supercharging a Canadian Tuxedo? Rock-Solid Abs, of Course!

Crop tops and six-packs were as ubiquitous as nude makeup and crisp whites this summer, and judging by Stella Maxwell's denim-on-denim moment in New York City yesterday, the skin-baring trend is breezing straight into fall. Spotted shopping in Soho, the Victoria's Secret model got a jump on the new season with matching skinnies and a jean jacket, a pairing that would have been unthinkable in the 90-degree weather were it not for one heat wave-ready detail: a flash of rippling abs that doubled as...