Jean-a-ma-jig Hump Jumper - Thick Seam Sewing Tool by Dritz
Conquer thick seams like a pro! The Jean-a-ma-jig (also known as a Hump Jumper) is the essential tool that eliminates the frustration of sewing over bulky seams and thick layers.
Solves Common Sewing Problems:
- Prevents Skipped Stitches: Keeps your needle moving smoothly over thick seam intersections
- Stops Broken Needles: Reduces needle stress when crossing multiple fabric layers
- Even Stitch Formation: Maintains consistent tension for professional-looking topstitching
- Universal Fit: Works with all sewing machine brands and models
Perfect For:
- Hemming jeans and heavy denim
- Topstitching jackets and outerwear
- Quilting through multiple layers
- Upholstery and home décor projects
- Towel hemming and thick terry cloth
- Any project with bulky seam intersections
How It Works: Simply place the Jean-a-ma-jig behind your presser foot when approaching a thick seam. It levels your presser foot, allowing smooth fabric feeding and preventing the dreaded "seam hump" that causes stitching problems.
Professional Results Every Time: Transform challenging thick-seam projects from frustrating struggles into smooth, professional finishes. No more re-doing topstitching or dealing with uneven stitches!
Trusted Dritz Quality: Made by Dritz, the professional choice for reliable sewing tools since 1870.
Product Information
Product Information
Shipping & Returns
Shipping & Returns




Jean-a-ma-jig Hump Jumper - Thick Seam Sewing Tool by Dritz
Jean-a-ma-jig Hump Jumper - Thick Seam Sewing Tool by Dritz
Conquer thick seams like a pro! The Jean-a-ma-jig (also known as a Hump Jumper) is the essential tool that eliminates the frustration of sewing over bulky seams and thick layers.
Solves Common Sewing Problems:
- Prevents Skipped Stitches: Keeps your needle moving smoothly over thick seam intersections
- Stops Broken Needles: Reduces needle stress when crossing multiple fabric layers
- Even Stitch Formation: Maintains consistent tension for professional-looking topstitching
- Universal Fit: Works with all sewing machine brands and models
Perfect For:
- Hemming jeans and heavy denim
- Topstitching jackets and outerwear
- Quilting through multiple layers
- Upholstery and home décor projects
- Towel hemming and thick terry cloth
- Any project with bulky seam intersections
How It Works: Simply place the Jean-a-ma-jig behind your presser foot when approaching a thick seam. It levels your presser foot, allowing smooth fabric feeding and preventing the dreaded "seam hump" that causes stitching problems.
Professional Results Every Time: Transform challenging thick-seam projects from frustrating struggles into smooth, professional finishes. No more re-doing topstitching or dealing with uneven stitches!
Trusted Dritz Quality: Made by Dritz, the professional choice for reliable sewing tools since 1870.
Original: $5.99
-70%$5.99
$1.80Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Conquer thick seams like a pro! The Jean-a-ma-jig (also known as a Hump Jumper) is the essential tool that eliminates the frustration of sewing over bulky seams and thick layers.
Solves Common Sewing Problems:
- Prevents Skipped Stitches: Keeps your needle moving smoothly over thick seam intersections
- Stops Broken Needles: Reduces needle stress when crossing multiple fabric layers
- Even Stitch Formation: Maintains consistent tension for professional-looking topstitching
- Universal Fit: Works with all sewing machine brands and models
Perfect For:
- Hemming jeans and heavy denim
- Topstitching jackets and outerwear
- Quilting through multiple layers
- Upholstery and home décor projects
- Towel hemming and thick terry cloth
- Any project with bulky seam intersections
How It Works: Simply place the Jean-a-ma-jig behind your presser foot when approaching a thick seam. It levels your presser foot, allowing smooth fabric feeding and preventing the dreaded "seam hump" that causes stitching problems.
Professional Results Every Time: Transform challenging thick-seam projects from frustrating struggles into smooth, professional finishes. No more re-doing topstitching or dealing with uneven stitches!
Trusted Dritz Quality: Made by Dritz, the professional choice for reliable sewing tools since 1870.


















