No. 3126

$7 or 1 Seamwork Credit |

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Pattern Description

Bertie is a sweet and feminine 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

Sizes and Supplies

0 - 26

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.

Imperial Measurement Chart      
Metric Measurement Chart
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Pattern Fit

We want to help you achieve the best fit possible so you can sew garments you truly love. That is why we create fit guides for every pattern. 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.

View Fit Guide

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Techniques and customization ideas for your Bertie

Choose the right elastic for the project.

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

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