Row 4 (WS): Knit. Knit 16 more rows. Your work should be approx 8cm (3in) long.
Change to Ocean Blue and knit 62 rows. Your work should be approx 32cm (12½in) long.
Change to Raspberry and knit 18 rows, ending with a WS row. Next row (RS): K2tog to end. 22 sts. Next row (WS): Knit. Next row: K2tog to end. 11 sts
MAKING UP 1 Break the yarn and thread through remaining stitches. 2 Turn right side out. Using matching yarn and mattress stitch, sew the sides of both Raspberry ends together. 3 Insert boster pad. Using matching yarn, sew the long side of the Ocean Blue section together. Using Ocean Blue, cast on 29 sts leaving a long tail and knit one row. Row 1 (RS): K1, m1, knit to last st, m1, k1. 31 sts Row 2 (WS): Knit. Row 3: K1, m1, knit to last st, m1, k1. 33 sts Row 4: Knit. Row 5: K1, m1, k14, k3tog, k14, m1, k1. Row 6: Knit. Repeat rows 5 and 6 twice more.
Change to Raspberry. Row 11 (RS): K1, m1, k14, k3tog, k14, m1, k1. Row 12 (WS): Knit. Repeat rows 11 and 12 four times more.
Change to Ocean Blue. Repeat rows 11 and 12 five times.
Change to Raspberry. Repeat rows 11 and 12 four times. Repeat row 11 once more. Cast off knitwise on the WS, leaving a long tail.
MAKING UP 1 With right sides together and using the long tail from the cast on and cast off edges, sew together the two ‘Vs’ of the piece, using the image below as a guide. 2 Thread thin ribbon around the edge of the slipper, pull tight to desired size, then knot and finish with a bow.