10/24/2026
What keeps a duffle bag round?
The round side panel. When it is interfaced firmly and finished with a piped edge, the bag keeps its barrel shape. Topstitching along the seam keeps that edge crisp.
A tip you can try today:
Mark the round panel and the body at four matching points (think 12, 3, 6 and 9 on a clock) and pin those first. Clip the body's seam allowance every 1.5 cm (5/8 inch), stopping just before the stitching line. The body eases around the curve and the circle comes out smooth, without tucks.
This works on a standard home sewing machine. Sew slowly, with the circle facing down.
Have you sewn a round panel before? How did it go?
Comment BAG and we'll send you 3 free backpack patterns (The FLAP Pack, The BUCKLE Pack, The ROLL Pack) with cutting charts in inches and cm, step-by-step diagrams and printable 1:1 templates.