
Left-Leaning Bar Increase
This simple increase is also called the KFB or K1FB increase.
This common increase, also known as “knit in front and back” and abbreviated kfb or k1fb, can be used in a variety of situations, from one side of a thumb gusset, to knitted lace, to top-down raglan shaping, and more. The increase leaves a small hole, which is often used intentionally for decorative purposes.
The mirror image of this increase is the Right-leaning Bar Increase.