Do not fear to sew stretchy materials. Here is a great tip for sewing stable hems on stretchy knits. It is easier than you think.
First Stretch Stitch and Motor Upgrade - WeAllSew
限定販売 [Re] knits ribbon Sleeve Clothing squeeze Cuffs hem
Clever Ways to Use the Bulky Overlock Foot - WeAllSew
You Can Make a Bralette, Part 2: Tips and Tricks - WeAllSew
Sewing Knit Fabric without a Serger featuring the bernette 77
Twin Needle Hemming - WeAllSew
Sewing Tips How to Hem Knits - Chalk and Notch
Overlocker For Beginners—Fast Finishing with Rolled Hems - WeAllSew
How to Sew Stretchy Fabric - Superlabelstore