Bicep Sleeve Adjustment Tutorial

Learn how to do a bicep sleeve adjustment to allow for more room around the biceps on any top, blouse, shirt or coat sewing pattern.

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What patterns can I use this Bicep Sleeve Adjustment tutorial with?

This bicep sleeve adjustment tutorial is perfect for anyone wanting to add more space into the bicep area of a sleeve.

Difficulty Level = Beginner

We originally designed this tutorial to show how to do a bicep sleeve adjustment with the our coat and top patterns (such as the Vintage Sleeve Blouse, Classic Blouse, Andie Anorak and Brielle Blouse), however you can use this with nearly any top or coat sewing pattern to adjust the biceps for a more personalized fit.

As each pattern will have different style sleeves, they may fit differently on you. Check your measurement against the finished measurement chart. Once you’ve made your muslin of the pattern, you may find you need to make the sleeve bigger at the bicep.

Measure your bicep and check that measurement against the finished measurements. Make a note of the difference. This is how much you will need to add into the sleeve bicep.

Follow the tutorial below to adjust your one piece sleeve, where you will split and spread the piece to add into the bicep.

Bicep Sleeve Adjustment


How do I get this tutorial?

Sign up for your Free Sewing Pattern Membership here. You will receive an immediate email with a link to your membership area. In there you will find this bicep sleeve adjustment tutorial plus many more!

Do you have any free patterns?

Yes! Lots of them 🙂 Have a browse in our Free Sewing Patterns page.

What if I need help while sewing?

Ask for help in our friendly Facebook sewing community if you get stuck. There’s thousands of other sewists and makers who have tried these exact patterns and love giving their top tips for the best finish or most creative options.