Verified Open Pattern (1.0.0-published)

This pattern includes verified home printable specification files, dual-unit sizing charts, and full cutting guides. Upstream source: FreeSewing (MIT / CC BY 4.0).

Tailored Blazer Intermediate XS – 3XL

Jaeger Single-Breasted Blazer

Jaeger Single-Breasted Blazer. Sourced directly from verified open distributions with authentic rights. Includes complete size tables, ease notes, and illustrated construction steps.

Jump to Downloads Front & Back Views Size & Measurements Fabric & Tools Step-by-Step Instructions

Technical Garment Schematics

Front and back flats illustrating seam lines, hem curves, and design details.

Front Elevation

Back Elevation

Sizing & Measurement Tables

Review both body benchmarks and finished garment ease before cutting your cloth.

Measurement Unit

Toggle between metric and imperial values across all charts

1. Body Measurements Chart

Your physical body dimensions. Measure over undergarments with a snug tape.

Swipe sizes

Size	Bust	Waist	Hip
XS	80 cm	62 cm	88 cm
S	86 cm	68 cm	94 cm
M	92 cm	74 cm	100 cm
L	98 cm	80 cm	106 cm
XL	108 cm	90 cm	116 cm
2XL	118 cm	100 cm	126 cm
3XL	128 cm	110 cm	136 cm

2. Finished Garment Measurements Chart

Dimensions of the sewn garment, including designed wearing ease.

Swipe sizes

Size	Finished Bust	Finished Length	Bottom Hem	Bicep Circumference
XS	98 cm	72 cm	106 cm	32 cm
S	104 cm	74 cm	112 cm	33.5 cm
M	110 cm	76 cm	118 cm	35 cm
L	116 cm	78 cm	124 cm	37 cm
XL	126 cm	80 cm	134 cm	40 cm
2XL	136 cm	82 cm	144 cm	43 cm
3XL	146 cm	84 cm	154 cm	46 cm

Size Selection Guidance

Select size based on chest measurement, accounting for mid-layer garments.

Wearing Ease Explanation

+12 to +16 cm chest ease for structured tailoring over blouses or shirts.

Fabric & Materials

Recommended substrates, stretch allowances, yardage requirements, and required notions.

Recommended Fabrics

Lightweight to medium-weight suitable fabric substrates

Lightweight to medium-weight suitable fabric substrates
Pre-washed natural fibers (cotton, linen, or bamboo)

Stretch Requirement: None (0% stable woven)

Notions & Sewing Tools

Ensure you have these ready before starting.

Notions:

Matching all-purpose polyester or cotton sewing thread
Universal sewing needle (size 80/12)

Tools Required:

Sewing machine
Fabric shears
Pins or fabric clips
Steam iron and ironing board

Fabric Yardage Requirements

Size Bracket	115 cm (45") Width	150 cm (60") Width
XS – M	2.4 m (2.6 yd)	1.9 m (2.1 yd)
L – XL	2.8 m (3.05 yd)	2.3 m (2.5 yd)
2XL – 3XL	3.2 m (3.5 yd)	2.7 m (2.95 yd)

Seam Allowances & Cutting Layout

Exact seam allowances included in pattern lines, piece list, and cutting discipline.

Standard Seams

15 mm (5/8 in) tailored seam allowance.

Hem Allowance

40 mm (1 5/8 in) hem allowance.

Neck & Armhole

N/A (Lined collar and tailored set-in armholes).

Pattern Pieces to Cut

Piece Name	Quantity & Orientation	Grainline / Cutting Notes
Jacket Front	Cut 1 Pair with Lapel Facing	Transfer roll line
Jacket Back	Cut 1 Pair (Center Back Seam & Vent)	Vent extensions
Upper Sleeve	Cut 1 Pair	Tailored sleeve head
Under Sleeve	Cut 1 Pair	Elbow shaping
Lapel Facing	Cut 1 Pair Main, 1 Pair Interfacing	Roll line facing
Collar	Cut 2 in Main, 1 Interfacing	Tailored collar
Lower Patch Pockets	Cut 2 in Self Fabric	Double topstitch

Fabric Cutting Checklist:

Press suiting wool, linen, or velvet before cutting.
Align piece grainlines strictly parallel to fabric selvages.
Transfer tailored roll lines and pocket markings with tailor's tacks.

Printable Pattern Files

Download PDF files for home printing on standard desktop printers.

Download Pattern Files

1.0.0

Direct pattern downloads. No registration, email capture, or paywalls required.

Updated: 2026-03-09

Instructions Available

Complete offline sewing guidebook with dual calibration test squares, yardage charts, pattern piece cut list, numbered steps, and troubleshooting.

15.1 KB • 4 pages

Download (15.1 KB)

A4 Available

Full-scale 1:1 tiled master pattern for A4 paper (22 sheets). Includes dual 50mm/2.0in calibration boxes, assembly map, grainlines, and corner registration crosshairs.

168.4 KB • 22 pages

Download (168.4 KB)

US Letter Available

Full-scale 1:1 tiled master pattern for US Letter paper (25 sheets). Includes dual 50mm/2.0in calibration boxes, assembly map, grainlines, and corner registration crosshairs.

191.7 KB • 25 pages

Download (191.7 KB)

Printer Calibration Test Sheet (Free Single Sheet) 2.4 KB

Print at 100% scale (no fit-to-page) and measure the 50mm and 2-inch test boxes with a hard ruler.

Download Test Sheet

Print Instructions:

Open the downloaded PDF in Adobe Acrobat Reader or a dedicated desktop PDF viewer. In the print dialog, select "Actual Size" or "Custom Scale: 100%". Never select "Fit to Printable Area". Always measure the calibration square on Page 1 before proceeding.

These files are prepared from documented pattern references through a technical drafting workflow. If anything appears incorrect, unclear, or causes a sewing problem, email feedbacksewingpattern@gmail.com. Send pattern feedback.

100% Scale Verification

Print Page 1 at 100% scale without page scaling. Check Metric box (50 mm x 50 mm) or Imperial box (2.0 in x 2.0 in = 50.8 mm) with a rigid ruler.

Read full printing & calibration guide →

Tile Assembly Instructions

Align numbered registration marks and butt tile edges flush without overlapping untrimmed paper. Tape securely.

Step-by-Step Sewing Instructions

Draft construction notes. Readable online; review against the pattern pieces before sewing.

Apply Interfacing & Construct Pockets

Apply fusible tailored interfacing to front chest piece, lapels, and upper collar. Hem patch pockets and edge-stitch to marked front locations.

Stitch Center Back Seam & Vent

Pin back pieces right sides together. Stitch center back seam down to vent notch. Press seam and fold back vent extensions according to guide marks.

Join Shoulder Seams & Collar

Stitch front to back at shoulder seams. Assemble tailored collar, attach to lapel facings, and stitch facing unit around jacket neckline and front edge.