Blouson

• Back1× on fold, 31 by 75 cm
• Front2×, 31 by 75 cm
• Sleeve2×, 50 by 68 cm
• Collar stand2× on fold, 24 by 7 cm

• Chest100.0 cm
• Seat102.0 cm
• Neck39.4 cm
• Nape to waist45.0 cm
• Scye depth22.0 cm
• Across back38.4 cm
• Across chest37.0 cm
• Shoulder length15.0 cm
• Arm length64.0 cm
• Bicep33.0 cm
• Wrist17.5 cm

• Chest ease18.0
• Length below waist24.0
• Shoulder extension2.5
• Armhole drop4.0
• Neck widening1.0
• Front neck drop1.0
• Front extension0.0
• Side waist suppression0.0
• Seat ease8.0
• Cap height / armhole0.22
• Cap ease1.5
• Sleeve hem width30.0
• Stand height4.5
• Patch pocketsNone

• Finished chest118.0
• Length from nape69.0
• Armhole total52.4
• Neckline total46.4
• Shoulder back − front0.5
• Side seams back − front0.0
• Finished hem118.0
• Sleeve cap53.9
• Cap ease1.5
• Sleeve width47.4

1. Cut and markCut every piece with the grain arrow parallel to the selvedge. Transfer the notches and the marks with tailor's chalk or a short snip into the seam allowance.
2. InterfacingFuse interfacing to the collar, stand, cuffs, waistband, facings and front edges before sewing anything.
3. ShouldersSew the shoulder seams, the back eased onto the front. Press open.
4. Collar and facingsSew the facings to the fronts, the under collar to the neckline and the top collar to the facings; turn, roll and press the lapels and collar into shape.
5. SleevesEase the sleeve cap with two rows of long stitches and sew the sleeve into the open armhole flat, matching the notches.
6. Side seamsSew the side seams and the sleeve underarm seams in one line, from the hem to the sleeve end.
7. ZipSet the open-ended zip down the fronts, then close the facing over its tape.
8. HemTurn up the hem twice and stitch, or catch it by hand.

• 110 cm wide2.5 m
• 140 cm wide1.6 m
• 150 cm wide2.2 m

Estimated from the pieces laid out with seam allowance, grain along the selvedge. Add more for matching checks or stripes. The editor shows the layout.