When the seasons change, we tend to cart around a specific type of jacket for summer: One we can throw on if the warm weather dips, but won’t become cumbersome or overbearing in the heat. Think of it like protection from a light breeze.
Fortunately, as proven by this year’s spring summer fashion weeks, there are plenty of trending styles from which to choose. You’ll find an abundance of light and sporty bomber jackets and nylon windbreakers, which are surprisingly suitable options for work or cocktail hour given their recent high-fashion makeover.
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BEST CASUAL SUMMER JACKET
Minima Esenciales Sioh Funnel Neck Jacket – was $320, now $157.44
If your style is more minimal, light blazers or canvas and cotton jackets are ideal for any casual occasion. While longer summer trench coats have fallen slightly out of favour (although, are they ever really out of style?), short trench coats (with funnel-neck collars!), military and utility jackets are taking their place.
Meanwhile, for formal affairs, silk blazers and lustrous fabrics like taffeta and satin are also top of mind after Ralph Lauren’s spring summer runway. Genuine silk, in particular, is an excellent spring jacket fabric, as it offers breathability and thermoregulation, plus a bit of razzle dazzle. (Just don’t forget your matching satin bag!)
As for what’s no longer trending, you’re likely to see less longline linen blazers for women in 2026 and 2027. Cropped linen styles persist but, as we’ve learned the hard way, ironing these bad boys is an insurmountable, Sisyphean task. Instead, women should look to other fabrics through which air can flow freely, including barely-there sheer, lace and mesh jackets.

The Best Casual Summer Jackets For Women
Embrace the trend of nylon bomber and utility jackets in your summer wardrobe—just make sure they’re unlined. While bomber jackets can be quite a substantial, heavy layer, lighter fabrications and simple, satin shell styles can do the trick for spring. Meanwhile, floaty, sporty, windbreaker styles are also on the hot list. Nylon may not sound like a summer fabric, but when done correctly, these can provide a good amount of warmth for an evening at a rooftop bar or beachside event.

The Best Summer Jackets You Can Wear To Work
If you work in an office, blazers are still relevant summer jackets. However, instead of going for dark colours, padded shoulders and heavy winter fabrics, look to light hues and even lighter materials. Depending on your workplace, you may find success in a canvas or cotton jackets, like a cropped trench style in a sandy colourway.

Summer Jackets For Special Events, Weddings And Formal Occasions
If you need a jacket for a summer wedding or special event, shiny silk, satin and taffeta finishes are all the rage this season in cropped, tailored styles. These prim and proper jackets follow South East Asian style influence, with Tang jackets, mandarin collars and cropped Kimono-style jackets dominating popular silhouettes among fashion-forward women. For a more relaxed, androgynous and traditional black tie silhouette, go for the classic black blazer, perhaps with a single tie-front for a contemporary touch.

The 2027 Summer Jacket Trends You Need To Know
For on-trend summer jacket styles look to the fabric: It’s all about sheer, shiny or intricate details. Scanlan Theodore has this category locked down, with an outerwear range comprising the full gamut of sheer, semi see-through jacket trends, including organza and lace summer jackets.
For thermoregulation and cooling, summer jackets should be made from cotton, silk, or linen, including linen blazers and light, unlined, cropped trench jackets. However, if you want a stylish, on-trend summer jacket style in 2026, look to sheer, mesh and even lace styles, which provide a light outer layer with a sensual quality.
Silk blazers and jackets with satin finishes are on-trend in 2027. Short, tailored jackets with Mandarin collars, military jackets, funnel-neck short trench jackets, and loose, tie-up and wrap styles are also trending for summer 2027 in Australia.
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