Squircle pattern by General Hogbuffer
This is a deceptively simple way of constructing a sock by reducing the flap to a very small strip and working an extended gusset in its place. The rounds form a right angle around the ankle and instep, which gradually softens into a continuous round; hence the reference to the mathematical problem of ‘squaring the circle’.
Make Your Heels Strong pattern by Erica Jackofsky (Fiddle Knits & 1 More Row)
The “Strong heel” was developed by Gerdine Crawford-Strong and first published in the Fall 2003 issue of Knitter’s Magazine. This heel does not require picking up stitches along a heel flap. Because of the constructions it is not the snuggest fitting heel, which is why I have chosen to work it in a 2x2 rib instead of using the more common stockinette.