Sign In
The Birch Trousers are inspired by classic tailoring and modern comfort. Designed to move with you, they blend a relaxed wide-leg silhouette with thoughtful details like front pintucks, slash pockets, and a smooth flat-front waistband. Perfect for everyday wear or elevated casual looks, Birch balances structure with ease, offering a stylish, approachable sewing project that you’ll reach for again and again.
The Birch Trousers are semi-fitted through the hips with a wide-leg cut for effortless drape. Front pintucks add crisp definition, while slash pockets and a deep double-fold hem provide functional, polished finishes. The flat-front waistband keeps the silhouette smooth, and the elastic back ensures all-day comfort. Clustered belt loops allow for belt styling to customize the look.
Ariel is wearing the Birch pant in a size 10 from our 00-18 size range with 1 1/2" removed from the inseam length. Her measurements are bust: 36 3/4" (93.3 cm), waist: 30 1/4" (76.8 cm), hip: 40 1/4" (102.2 cm), and she is 5'6" (167.6 cm) tall.
Crosby is wearing the Birch pant in a size 18 from our 12-30 size range with 2" added to the inseam length. Her measurements are bust: 47 1/2" (120.6 cm), waist: 38 1/2" (97.8 cm), hip: 50 3/8" (127.9 cm), and she is 5'10" (177.8 cm) tall.
FABRIC AND FIT
Fabric recommendations:
Medium weight woven fabrics such as linen, chambray, cotton twill, denim, Tencel, or light wool blends work beautifully for Birch. Look for fabrics with a bit of drape but enough body to hold the wide-leg silhouette.
Lightweight denim and cotton twills will give structure without stiffness, while Tencel and linen blends create elegant movement. Avoid overly stiff fabrics that can create unneccesary bulk at the back waistband.
Fitting tips:
- Understanding ease will help you pick the right size or sizes. This tutorial will teach you all about design and wearing ease.
- Follow this tutorial to lengthen and shorten a sewing pattern.
- Blending between sizes is an easy way to get a more custom fit.
- Check out this article on pants fitting basics or do a pant fitting deep dive in this video sewalong.
