How to crop and hem knit garments (and how to use a twin needle). You can hem sweatpants, yoga pants, t shirts, tank tops and even sleeves made of stretchy or knit fabric using a twin needle! It looks really professional, and the twin needle allows the hem to stretch! The bobbin creates a zig zag stitch on the bottom which allows for the stretch. ✨Settings✨ Machines that can sew a zig zag can use a two needle. I recommend using a 3mm stitch- don’t go too long or you’ll lose stretch! If…