I AM Colibri, the classic overalls. I have two patched pockets at the front and at the back. You tie me with classic dungarees fasteners and I have snap fasteners to open and close on the side. All seam allowances are included in the pattern. The pattern is enclosed in an envelope. It contains the sewing pattern along with a step by step illustrated explanation guide. The different pieces overlap with each other so you will need to trace the pattern on paper.