Video Tutorial

Make the sole following the diagram

TOP PART (1)

Round 1: 5 double crochet to the left place the yarn. Make 5 single crochet (back loops only)
Round 2: Chain 1, turn, 5 single crochet
Rounds 3-7: chain 1, turn, 5 single crochetFasten off  10 double crochet to the right place the yarn
Round 1: 5 single crochet
Rounds 3-7: chain 1, turn, 5 single crochet  

TOP PART (2)

1 half double crochet to the left

TOP PART (1)

Round 1: 3 single crochet
Round 2: chain 1, turn, 3 single crochet
Rounds 3-17: chain 1, turn, 3 single crochet3 single crochet in the other side
Repeat the same making 13 rows chain 4
Rounds 2-36: 3 single crochet
Round 37: chain 4, slip stitch  
Round 38: 3 single crochet in the hole, slip stitchFasten off Sew all parts