From Blueprints for Sewing:
Cabin is easy, comfortable, and flattering shirt or shift dress.
Version 1 is a shirt that ends at mid hip with a center back pleat for a swingy silhouette.
Version 2 is a tunic that hits at mid thigh and includes ‘weltless’ pockets, a design that creates the look of a single welt pocket with a fraction of the effort and only one pattern piece. It can also be made with darts instead of a back pleat.
Version 3 is a dress that hits right above the knee and swaps the back pleat for darts, but it can also be made with the back pleat.
All versions are styled with bias facing around neckline, armhole, and hem. This allows for an opportunity to use contrast stitching around hems as well. Bias facing can be purchased, or made from self or contrasting fabric. Version 3 also features a ‘weltless’ pocket, a design that creates the look of a single welt pocket with a fraction of the effort and only one pattern piece.
Versions 1 and 2 feature a back pleat that adds ease and volume for a relaxed fit, while french darts create a barely-tailored silouette in front. The back pleat can be embroidered with a variety of cabin designs that you can download here, your own design, or left unadorned.
Two seam finish options are also given for the pattern and include instructions for creating these finishes.
The pattern features alteration instructions for different sizes at Bust-Waist-Hip, Shorten and Lengthen, and Full Bust Adjustments.