Kai Straight Leg Jean KOOKA Australia Kai Straight Leg Jean KOOKA Australia Kai Straight Leg Jean KOOKA Australia Kai Straight Leg Jean KOOKA Australia Kai Straight Leg Jean KOOKA Australia. The Kai Straight Leg Jean in Vintage Mid Blue brings a clean, effortlessly relaxed energy to your denim wardrobe. A mid rise, straight leg silhouette falls in a long, elongating line, while a distinctive cross over waistband detail at the back adds a signature, fashion forward finish. Classic five pocket detailing and a worn in wash complete this considered, versatile piece that pairs seamlessly with everything from a crisp blazer to a simple tank. Fit may vary slightly depending on the wash. For a relaxed look, we recommend sizing up. Model height: 178cm Model wears AU Size 8 Estimated arrival early May.