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The term "shacket" might be something you've only heard of in the past few years, but the shirt jackets and overshirts that fill the category have long been a part of menswear. With elements of a button-down shirt and a jacket, these garments are loved for their comfort and versatility throughout all seasons of the year.

Typically made from thick cotton, fleece, or other soft, warm, and strong materials, shackets can be worn as mid-weight shirts layered under heavier coats in cold weather or as lightweight jackets in milder temperatures.

Depending on where you live, spring weather can be completely unpredictable — and that's why owning a shacket is useful.

And once spring is over, you'll still get plenty of use out of your shacket. From breezy summer nights to the freezing temperatures of fall, shackets can be layered to your needs.

Everlane's The Heavyweight Overshirt instantly stands out from other shirt jackets based on its material alone. Made from 8-ounce heavy cotton twill, The Heavyweight offers both warmth and strength. A textured weave adds visual appeal.

Not only is the Dickies Flannel Shirt Jacket lined with polyester fleece for extra warmth without the bulk of a puffy coat, but it also features a water-repellent, 3-ounce cotton-flannel exterior — meaning you'll stay dry even when the weather doesn't want to cooperate. 

Constructed from 100% cotton ripstop fabric and lined with classic cotton flannel, this is by far the most durable shirt jacket on our list. Brambles, thorns, scrapes, and abrasions don't stand a chance against this shirt jacket's sturdy exterior. It's so durable it can double as a piece of workwear when necessary. 

Crafted from a lightweight linen-cotton material, the Flint & Tinder Quilted Indigo Camp Shirt makes up for its lack of weight with quilted insulation and an extra interior lining. Metal snaps on the Flint & Tinder Camp Shirt keep the wind out, while the two breast pockets, two hand pockets, and an interior phone pocket mean you'll never be without storage when you need it. 

Constructed from a thick, heavyweight fabric, the waffle quilting in Marine Layer's Quilted Overshirt adds an extra bit of insulation that you would normally only get with two layers. Built with a looser, more casual fit, this shirt jacket is great for throwing over a midlayer for added warmth on particularly crisp days, or as your outermost layer when the forecast calls for sun. 

The Outerknown Blanket Shirt is the perfect shirt jacket to use year-round. The thick yet breathable and comfortable fabric makes it great for transitional spring weather, cool summer nights by the water, or as a midweight layer in the fall and winter.

Combining the outdoor aesthetic of L.L.Bean with the fine menswear styling of Todd Snyder, this Organic French Terry Shirt Jacket is one that will look as good as it performs. Classic L.L.Bean branding gives the jacket a vintage feel.

Leave it to Patagonia to make a fantastic shirt jacket from recycled polyester fleece. The fleece has been spun into a yarn, making for a thicker, but still streamlined knit style. Extremely warm and soft, the Better Sweater Fleece Shirt Jacket offers hidden hand pockets to keep the style minimal, as well as a chest pocket and a full button-down placket. 

Made from water- and wind-resistant ripstop nylon and filled with Primaloft insulation, the Woolrich Hunt Padded Overshirt is great for those chilly spring days when your bulky puffer or parka is too heavy.

Designed to be unisex, The Everyone Spring Shirt Jacket features a boxy, oversized fit with oversized front pockets to match. The breathable cotton material makes it a solid layering piece for spring weather.

The North Face Gordon Lyons Shacket is functional, stylish, and sustainably made from 53% recycled materials. It features snap closure front buttons, zippered front pockets to keep your belongings secure, and one chest pocket.

Bonobos has a variety of shackets ranging from classic plaid and checkered patterns to warmer sherpa-lined options, but one of the most interesting is The Knit Shacket. Made using a comfortable waffle knit material, it can truly function as a shirt or a jacket depending on the weather.

This nearly-white shacket from Gap is an easy way to brighten up your spring wardrobe without adding too much color. Just be careful not to get any stains on it!

Made with mid-weight merino wool felt, Buck Mason's Field Shirt is comfortable to wear at least three seasons out of the year. The all-black color makes it easy to wear with everything in your closet, too.

Far from your average flannel or button-up, the Fjallraven Canada Shirt is incredibly thick and warm. It's an amazing mid-layer in harsh winter weather, but also doubles as a light jacket for mild spring weather.

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