Jasika Blazer

Closet Case Patterns


In stock

Buy the Jasika Blazer sewing pattern from Closet Case Patterns. The Jasika Blazer is a classic tailored jacket with a semi-fitted shape that will never go out of style. With just the right amount of polish and detail, Jasika is a wardrobe workhorse and a mighty skill builder. Our instructions use modern speed tailoring methods, fusible interfacings and minimal hand sewing to make tailoring fun and accessible for everyone; make a blazer you’ll want to wear forever!

This jacket is fully lined and features a classic notched collar, single button closure, back vent, shoulder pads, welt pockets, gorgeous two-piece sleeves and a flattering shape that skims the curves of the body. Optional details include pocket flaps, topstitching, decorative sleeve cuff buttons and leather or suede elbow patches.

Suggested fabrics: For the jacket body: medium to heavyweight suitings or lightweight coatings with surface texture such as wool melton, wool flannel, crepe and tweed. Velvet, medium-heavy weight cotton, seersucker and linen may also be used. Please note: tightly woven, smooth surfaced suitings like wool gabardine are not recommended since they can be difficult to fuse using an iron.
For the lining: rayon bemberg, charmeuse, crepe de chine, silky cottons like voile.
For the pockets: sturdy cotton like shirting, quilting cotton or muslin.

Fabric requirements:

45″/1.14m wide fabric: Jacket Body sizes 0-8 = 2.5yd / 2.3m, sizes 10-14 = 2.75yd / 2.5m, sizes 16-20 = 3 yd / 2.75m. Lining sizes 0-8 = 1.5yd / 1.4m, sizes 10-20 = 2.25yd / 2m.

58″/1.5M wide fabric: Jacket Body sizes 0-8 = 1.75yd / 1.6m, sizes 10-14 = 2yd / 1.85m, sizes 16-20 = 2.25yd / 2m. Lining
sizes 0-14 = 1.5yd / 1.4m, sizes 16-20 = 1.75yd / 1.6m.

Pockets: (1/4 yd / .25m)

Sizing: 0 – 20. Please see the size chart and finished garment measurements.

Notions: Fusible weft interfacing (1.5 yd / 1.4m), Fusible knit interfacing (1yd / .8m), Horsehair canvas (1/4 yd / .25m), Polyester thread, Optional: topstitching thread for collar, Optional: silk basting thread, Cotton stay tape 1/4″ wide x 2.5 yds / 2.4m, Shoulder pads – 1/4″ – 3/8″ thick, Sleeveheads or lambs wool/cotton batting cut into 2″ wide bias strips, Optional: Leather or suede for elbow patches, Lapel button: 1 x 3/4″ (19mm), 1 x clear button , Optional: Sleeve buttons: 6 x 5/8″ (26mm), Marking tool / tailor’s chalk, Handsewing needles & thimble, Tailors ham and seam roll, Press cloth (cotton or silk organza), Pinking shears, Point presser or wood clapper, Steam iron.

This sewing pattern is available in PAPER format.

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Additional information


Heavyweight Cotton / Twill / Gabardine, Rayon / Viscose / Crepe, Velvet / Velveteen, Wools / Suiting

Make time

All weekend or longer

Sewing level



UK 2 / US 00 / EU 30, UK 4 / US 0 / EU 32, UK 6 / US 2 / EU 34, UK 8 / US 4 / EU 36, UK 10 / US 6 / EU 38, UK 12 / US 8 / EU 40, UK 14 / US 10 / EU 42, UK 16 / US 12 / EU 44, UK 18 / US 14 / EU 46, UK 20 / US 16 / EU 48

Pattern format


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What others are saying

  1. Samantha Nelson

    5 out of 5

    Samantha Nelson

    I would definitely recommend the Jasika Blazer pattern, making a muslin is a must and you will need to have some sewing experience of varied projects especially setting in sleeves, having said that I think the way Heather explains things and guides you through most of the steps, a novice could attempt this project. You have to be accurate but the tailors tacks make you be accurate with your sewing.

    The worst bit: For me was adding the pocket bags, which were fiddly due to the tiniest bit of fabric you are sewing to and my zip foot design doesn’t seem to get me close enough, hey ho.

    The best bit: Apart from the finished jacket, definitely sewing the facing and collars together and then turning out the jacket facing. This had to be really accurate as I chose to do a contrast collar, any mis-alignment would have been really obvious.

    Be prepared to be patient and for it to take several hours, but the skills you learn stand you in good stead and give you an amazing Jacket to wear with pride.

    I would definitely make another one and have read a lot of people saying the same, now I see people wearing blazers popping up everywhere in magazines, on the telly and in the street. This just proves they are such a classic item to have in your handmade wardrobe.

    If you want more information I have done a full review of the Closet Case Patterns Jasika Blazer ‘Learn to sew a classic blazer’ Course on my blog. https://theruralsewist.wordpress.com/

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