Video Tutorial

Round 1: 8 single crochet magic ring
Round 2: 1 increase around
Round 3: 1 single crochet, 1 increase. Repeat around
Round 4: 2 single crochet, 1 increase. Repeat around 
Round 5: 3 single crochet, 1 increase. Repeat around 
Round 6: 4 single crochet, 1 increase. Repeat around 
Rounds 7-25: 1 single crochet
Rounds 26-66: 34 single crochet
Fasten off and leave alnog end for sewing. Sew the back part of the slipper to close

Place the yarn in a side
Vueltas 1 a 24: 8 single crochet
Vuelta 25: 3 single crochet, chain 2, 3 single crochet
Vuelat 26: 8 single crochet (2 in the chain 2 space of the previous round)
Fasten off and sew the buttonConfigure