Quick answer: Cast on half your stitches in waste yarn, work 4 setup rows with main yarn, then begin ribbing. The result is a seamless, highly elastic edge that looks like the ribbing grew from nothing.
What it is
The tubular cast on creates a double-layer edge that transitions invisibly into 1x1 ribbing. Used in high-end knitwear for its polished finish.
When to use it
- Sock and mitten cuffs
- Hat brims
- Any 1x1 ribbing where you want the cleanest possible edge
How to do it
- With waste yarn, cast on half the required stitches using backward-loop cast on.
- Switch to main yarn. Row 1: knit all stitches.
- Row 2: k1, yarn forward, slip 1 purlwise, yarn back — repeat to end.
- Row 3: yarn forward, slip 1 purlwise, yarn back, k1 — repeat to end.
- Repeat rows 2-3 once more (4 setup rows total).
- Begin your ribbing. Remove waste yarn after several rows.
Common mistakes
- Forgetting to move yarn when slipping — creates twisted stitches
- Working setup rows too tightly — keep tension relaxed
- Removing waste yarn before 5 rows of ribbing are complete