Single-Breasted Simple Blazer
A sophisticated single-breasted blazer pattern, designed for a tailored fit with elegant shaping seams and a classic notched lapel.
When To Wear
This versatile blazer is perfect for creating polished looks for various occasions:
- Professional & Business Casual: An essential piece for workwear, adding a refined touch to any outfit.
- Smart Casual Outings: Elevate everyday ensembles for lunches, gatherings, or casual evening events.
- Transitional Styling: Ideal as a lightweight outer layer for spring, summer, or early autumn.
Key Design Features
Silhouette: a tailored, fitted silhouette with shaping princess seams on both the front and back for a structured yet flattering line.
Neckline & Collar: Features a classic notched lapel and a structured blazer collar, designed for a sharp and professional finish.
Closure: Single-breasted front with a single button closure, offering a clean and minimalist aesthetic.
Sleeves: Long, two-piece set-in sleeves provide a smooth, tailored fit around the arms.
Pockets: In-seam pockets are set into the front princess seams, with topstitched openings, offering both functionality and a streamlined appearance.
Back: Center back seam and princess seams from the armholes to the hem, topstitched 0.7 cm from the seams, enhancing the garment's contoured fit.
Lining: Fully lined, with a padded sleeve-head strip and shoulder pads for a smooth shoulder line.
Length: Designed to hit at the hip, providing a modern and proportional length.
Level Of Difficulty
Intermediate. Requires familiarity with tailored construction, including working with interfacing, setting sleeves, constructing a notched collar and lapel, making in-seam pockets and bagging a lining.
Fabric Recommendations
Choose suiting fabrics that hold their shape well to achieve the intended tailored structure:
- Suiting fabrics that hold their shape
- Poplin (for a crisp finish)
Additional Supplies
- Lining fabric (150 cm wide, in a coordinating tone)
- Fusible interfacing
- 1 button
- Shoulder pads
- A small piece of synthetic wadding
Cutter's Must
- From main fabric:
- Center Front – 2 pieces
- Side Front – 2 pieces
- Center Back – 2 pieces
- Side Back – 2 pieces
- Upper Sleeve – 2 pieces
- Lower Sleeve – 2 pieces
- Collar – 2 pieces, cut on fold (upper and under collar)
- Back Neckline Facing – 1 piece, cut on fold
- Center Front Facing – 2 pieces
- Pocket – 2 pieces
- From lining fabric: Pocket – 2 pieces; Center Front (minus the width of the Center Front Facing) – 2 pieces; Center Back (minus the width of the Back Neckline Facing) – 2 pieces; Side Front – 2 pieces; Side Back – 2 pieces; Upper Sleeve – 2 pieces; Lower Sleeve – 2 pieces.
- From fusible interfacing: Center Front Facing, Back Neckline Facing, Collar.
Sewing Instructions
- Fuse interfacing to the Center Front Facings, Back Neckline Facing and Collar.
- Stitch the center back seam (Center Back pieces). Press the seam allowances open.
- Stitch the back princess seams (Center Back to Side Back). Press the seam allowances towards the center back. Topstitch the Center Back pieces along the princess seams 0.7 cm from the seam.
- Stitch the front princess seams (Center Front to Side Front), leaving the pocket openings unstitched. Press the seam allowances towards the center front.
- Stitch the upper Pocket bag to the pocket opening allowance of the Center Front, right sides together. Topstitch the Center Front along the pocket opening. Stitch the lower Pocket bag to the pocket opening allowance of the Side Front, right sides together. Stitch the Pocket bags together around the edges. Topstitch the Center Front along the princess seam above and below the pocket opening.
- Stitch the side and shoulder seams.
- Stitch the Back Neckline Facing to the Center Front Facings.
- Place the joined facings on the jacket, right sides together, and pin. Stitch the Center Front Facings to the front and lapel edges up to the collar notch mark.
- Stitch the two Collar pieces right sides together along the outer edge, trim and turn. Insert the Collar between the jacket and the joined facings. Stitch the under collar to the jacket neckline and the upper collar to the neckline of the facings. Press the collar attachment seam allowances open and clip them at the curves. Turn the facings to the wrong side. Pin the under and upper collar attachment seams together and stitch their allowances together close to the seams. Press the jacket hem allowance to the wrong side.
- Stitch the front and elbow seams of the sleeves (Upper Sleeve to Lower Sleeve). Press the sleeve hem allowance to the wrong side. Set in the sleeves, easing the sleeve caps. Sew a strip of synthetic batting approx. 4 cm wide under the seam allowances of each sleeve attachment seam in the sleeve cap area. Attach shoulder pads.
- Stitch the lining pieces similarly to the main garment, leaving an unstitched section of about 20 cm in the elbow seam of one of the sleeves. Place the lining and the main garment right sides together, pin along the center back and shoulder seams. Stitch the lining to the jacket along the inner edges of the Center Front Facings and Back Neckline Facing. Stitch the sleeve lining to the sleeve hem allowances. Stitch the lining to the edge of the jacket hem allowance. Turn the garment right side out through the unstitched sleeve section, then stitch this section closed.
- Topstitch the jacket along the edges of the fronts, lapels, and collar.
- On the right front, make a buttonhole; on the left, sew on a button.
