S2kp is short for “slip 2, k1, pass slipped stitches over” and is also referred to as a Centered Double Decrease. You work an s2kp over three stitches, decrease two, and end up with one. The beauty of this technique is that the finished stitch slants neither left nor right, but rather lies perfectly centered. An s2kp also finishes as a slightly raised stitch, which can be very pretty! Here’s how you do it…

Slip 2 stitches together knitwise, knit 1, pass slipped stitches over knit stitch and off right needle. [2 stitches decreased]

We turn to this fantastic double decrease time and time again. Here are two free patterns that put the s2kp to good use!

Optic Blanket

Slip Slip Knit Pass (s2kp) | Purl Soho

Tiny Stripes Hat
Garter Ear Flap Hat