Quick fix: Wet block the finished section first — soak in cool water, stretch to correct dimensions, pin, and dry fully. For many tight-float situations, this is enough to restore the fabric.
What you are seeing
The fabric is puckered, gathered, or pulling in at points — usually where yarn is carried across the back in colorwork (floats), or where stitches were worked with too much tension. The fabric doesn't lie flat and the design is distorted.
Why it happens
- Floats pulled too tight across the back of colorwork, cinching the stitches together
- Working tightly in one session and not spreading stitches before carrying yarn across
- Using yarn that has little elasticity (cotton, linen) which doesn't relax under tension
- Tension spiking under stress or concentration
Fix it now
- Wet block: soak the piece for 20 minutes in cool water. Squeeze out gently (don't wring). Pin to correct measurements on a foam blocking mat and allow to dry completely. Wool and wool blends can be stretched significantly this way.
- For persistent puckering after blocking: the floats are genuinely too short. You'll need to rip back to the affected section and re-knit, spreading stitches on the right needle before each float carry.
- For a single isolated tight spot: you can carefully snip the tight float on the WS and re-attach with a duplicate stitch or duplicate the stitches above to create slack. This is advanced — practice on scrap first.
Prevent it next time
- In colorwork: spread 4–5 stitches on the right needle before every float carry
- Knit colorwork on a needle 1 size larger than your gauge needle — colorwork almost always knits tighter
- Check the back of your colorwork every few rows: floats should lie loose and flat, not pull tight