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No. 3126

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Bertie is a sweet shirtdress full of special details, like a V-neckline, center front button placket, elasticized waist, and full-length sleeves gathered into tied cuffs.

Match your favorite buttons to lightweight or medium-weight woven fabrics, like shirting, chambray, flannel, lawn, voile, rayon challis, Tencel, or silk crepe.

Seamwork Issue 63

Beginner Intermediate

Downloadable digital pattern

Our Misses patterns are drafted for a C cup and our Curvy patterns are drafted for DD. Both are drafted for a height of 5'8" (172 cm).

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We want to help you achieve the best fit possible so you can sew garments you truly love. Our fit guides are designed to help you better understand the fit and details of each pattern. Use fit guides in conjunction with the finished measurement chart to better understand the ease and intended fit of each pattern.

All-purpose polyester sewing thread, sewing machine needle, 1 1/8 yards (1 meter) of lightweight fusible interfacing, eight or nine 3/8" (10 mm) buttons, 1 3/8 yards (1.3 meters) of 1/4" (6 mm) braided elastic. 26" (66 cm) o 1/4" (6 mm) double fold bias tape, small hook and eye Small safety pin

Light to medium weight woven fabrics such as shirting, chambray, flannel, lawn, voile, rayon challis, rayon crepe, Tencel poplin, Tencel twill, and silk crepe.

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This pattern is a digital download. When you purchase a PDF pattern from Seamwork, your new pattern will be stored in your download library, where you can download it as many times as you like.

Most pattern PDFs are layered for easier printing.

Print-at-home files, copy shop files, and instructions. See contents file in download for detailed descriptions.

Teaching a class using Bertie? Purchase a bulk license for your classroom here.

Teaching a class using Bertie?

We love seeing Seamwork patterns in the classroom! A bulk license will allow you to print as many copies of your pattern as you need for your students.

Please also review our teaching terms and conditions.

Looking for help with our patterns? Check here first.

You May Also Like:

The Ultimate Guide to Elastic

Choose the right elastic for the project.
Create and Sew Bias Tape

This tutorial will show you how to create continuous bias tape and attach it to your garment.
Bonus Bertie Pattern

This month’s bonus variation offers 3/4-length sleeves with cuffs.