Triangles Knited Lace stitch
Techniques used 
K: Knit
P: Purl
Yo: Yarn over
K2tog: Knit 2 together
Pattern
Multiple of 11, + 5.
Row 1 (RS): k2, *K2, (k2tog, yo) 4 times, k1; rep from * to last 5 sts, k5.
Row 3: * K3, (k2tog, yo) 3 times, k2; rep from * to last 5 sts, k5.
Row 5: * K4, (k2tog, yo) twice, k3; rep from * to last 5 sts, k5.
Row 7: * K5, k2tog, yo, k4; rep from * to last 5 sts, k5.
Row 9: K5, * k2, (k2tog, yo) 4 times, k1; rep from * to end.
Row 11: K5, * k3, (k2tog, yo) 3 times, k2; rep from * to end.
Row 13: K5, * k4, (k2tog, yo) twice, k3; rep from * to end.
Row 15: K5, * k5, k2tog, yo, k4; rep from * to end.
Repeat rows 1-16.