1 — Interfacing and Pre-Pressing

First, cut out your pattern pieces. We recommend block fusing the pattern pieces that require interfacing.

Block fusing is a technique where you apply your interfacing to a section of fabric prior to cutting out the pattern pieces. It helps avoid interfacing slippage and stops your pattern pieces from stretching out of shape, and therefore ensures accuracy. It also means you only need to cut your pieces out once.

For the Cass Pant, these pattern pieces that require fusing are,

1. Left Waistband and Left Waistband Facing
2. Right Waistband and Right Waistband Facing
3. Jets
4. Jet Pocket Bearer
5. Fly Facing

If you choose to piece fuse keep your pattern pieces close by for reference and make sure they don’t stretch out of shape!

Take your front and back pieces and press the hem seam allowance up 1cm towards the wrong side as indicated by the notch. Next fold the hem up a further 4cm, in line with the notches, and press again. The finished hem depth will measure 4cm.

Take the belt loop piece into thirds lengthwise as indicated by the notches with the right side out. The finished belt loop piece will measure 1.3cm.

Press your front pocket bags in half at the centre notches, right sides together.

Take the back button loop pieces and press in half. Unfold and press 5mm in towards the centre crease line. Your finished pieces will measure 5mm in width.

Now, fold the jet pieces in half lengthwise and press.

Now it is time to start sewing! Move on to constructing the backs.