Flat tummy and model legs… Kendall Jenner takes on Irina Shayk

Irina Shayk attended the De Grisogono Photocall at Rue de La Boetie in Paris. (Getty Images)

Irina showed off her incredible figure in the polo-neck mini-dress. (Getty Images)

Her thigh-high boots added a racy edge to the simple look. (Getty Images)

The 30-year-old is one of the world's leading supermodels. (Getty Images)

(Getty Images)

Kendall Jenner showed off her supermodel good looks as she posed up a storm at the Mango Tribal Spirit photocall in Barcelona. (Getty Images)

Kendall highlighted her tiny waist in her fitted vest top and matching fringed skirt. (Getty Images)

The 20-year-old is the first of four campaign stars for Mango this Spring. (Getty Images)

(Getty Images)