From I Am Patterns:
I am Nout, a pair of sailor trousers, a classic garment to slip into your forever-wardrobe. I am an ankle length tapered trouser. I have a buttoned front flap closure paired with some classic jeans-style details and finishes: patch pockets at the back, a waistband and contrasting colour topstitching.
Recommended Fabrics: Denim, cotton twill, chambray, linen, lightweight jacquard, corduroy needlecord, lightweight gabardine.
Sizes: EUR 34 to 52 (PDF), 36 to 46 (Paper)