Pingo Esterel 3 yarn, an openwork fantasy stitch, and you will get the Issa vest.
Required Materials
To make the Issa Vest, you will need:

• No. 3 crochet hook from the PPY range
• Stitch markers
• 5 buttons Ø 14 mm, reference: 054579
• Darning needle

Instructions in the following sizes: S (15/17 years), M (42/44), L (46/48), XL (50/52), XXL (54/56)
Techniques Used

• Chain stitch
• Slip stitch
• Double crochet
• Treble crochet
• Fantasy stitch
• Decrease
• Increase

Parts to be made:

• Back
• Half Fronts
• Sleeves
• Collar