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Form Blazer
Form Blazer
In stock
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Free standard shipping
Sizes 06-20
21 Day returns
Meet the Form Blazer, the elevated layer designed to complete your athleisure wardrobe. Crafted from a soft stretch fabrication, it offers structure without compromising on comfort and moving with you through every part of your day. Pair it with the Core Crop and Core Legging for a polished look and finished with a small heel, or style it with your favourite sneakers for an understated off-duty fit. A timeless wardrobe staple designed to take you from movement to moments beyond, when the sun or moon are shining.
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Details
Details
- Fitted silhouette
- Structured shoulder pads
- Super-soft stretch fabrication
- Signature SIS button detailing
- Exclusive SIS leather detailing
- Collared lapel design
- Full-length sleeves
- Comfortable, unrestricted feel
- Size up for an oversized fit
- 65% Rayon, 30% Nylon, 5% Elastane
Size Guide
Size Guide
View the full size guide here.
Shipping
Shipping
Enjoy free standard shipping on all Australia-wide orders over $120. All orders are shipped via Australia Post Monday - Friday at 4pm. Orders made on a weekend, will be processed on Monday. We ship via standard post and express post for the following fee:
Standard post (2-8 business days) $10.95
Express post (1-4 business days) $14.95
Returns
Returns
We have a 21-day return policy, which means you have 21 days after purchasing your item to request a return. Read the full return policy here.

Style with
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Sol Shirt Sky
Regular price $129.95 AUDRegular priceUnit price / per$129.95 AUDSale price $129.95 AUD -
Form Blazer
Regular price $249.95 AUDRegular priceUnit price / perSale price $249.95 AUD -
Core Legging
Regular price $99.95 AUDRegular priceUnit price / perSale price $99.95 AUD
Styled by SIS
BRUNCH WITH THE GIRLS
LONG LUNCH
dinner plans
Crafted in Form
Our Form fabrication combines 65% Rayon, 30% Nylon and 5% Elastane for a super-soft feel with comfortable stretch. Structured yet flexible, it’s designed to hold its shape while moving effortlessly with you throughout the day.
Words From Our Community
Behind The Design
A note from gab
If you know me, you know I’ve always been a blazer queen! So designing the Form Blazer into the SIS collection was a non-negotiable.
What I love most about this design is that you get that structured, polished look of a blazer, but the fabrication is SO soft and stretchy that it feels completely different to wear. I wanted it to be an everyday blazer you’ll actually reach for again and again. It’s that staple piece you throw on over just about anything and instantly feel put together. For me, it’s the piece that pulls the whole look together!
The SIS Promise
Designed in Australia
Every SIS piece is thoughtfully designed in Australia with versatility, longevity and the everyday woman in mind.
Intentionally crafted in small runs
We produce in small quantities to reduce waste, maintain quality and create pieces that feel considered rather than mass produced.
Inspired by real women and real routines
The daily grind rarely consists of just one outing or event, and neither should your wardrobe! Every SIS piece is designed to move with you through the many moments of your day from school drop-offs and coffee runs to work, studio sessions and dinner plans... so you can feel comfortable, confident and elevated wherever the day takes you.






