Despite popular belief, it is in fact possible to keep your outfit casual without resorting to gym clothes or loungewear. The solution lies in a solid rotation of casual shirts, which are perfect for nailing that dapper dressed-down look. To channel relaxed everyday style, ditch the suit and team your button-down of choice with jeans – or shorts in summer – and trainers. It's that simple. From breezy linen shirts to short-sleeved floral styles, discover our pick of the best casual shirts for men right now.

Best casual shirts for men in 2023

ISTO. Linen Shirt

Keep things easy and breezy in this summer-ready shirt from Lisbon-based label ISTO. It's cut from 100% French linen for a super-soft feel and flattering natural drape. Custom bio resin buttons and a chest pocket complete the look. Choose from a range of nature-inspired hues.

Neem Regenerative Cotton White Poplin Nehru Shirt

Grandad collar shirts tend to be rather divisive, but here at OPUMO, we're firm fans – particularly of this style by Neem. It's sustainably and ethically crafted from 100% regenerative organic certified cotton, so you can feel good about your purchase. Style it with a chore jacket and chinos for a fail-safe weekend look.

CDLP Short Sleeve Home Shirt

CDLP has taken loungewear to the next level, with its impressive Homewear collection, consisting of pieces that are designed to be worn everywhere from your sofa to the streets. For a dose of laidback luxury, opt for CDLP's short sleeve Home Shirt. The boxy style is cut from a lustrous woven lyocell, with accent satin piping. Effortlessly elegant.

Velasca Norcia Shirt

This Italian-made flannel shirt from Velasca is ideal for casual everyday wear. Team it with cuffed jeans and sturdy boots for a rugged country-inspired outfit that will look as great in the mountains as your local bar.

Form&Thread Canvas Atelier Overshirt

Form&Thread specialises in workwear-inspired staples, like its bestselling Atelier Overshirt. It's the ultimate shirt-jacket hybrid, perfect for year-round layering. Crafted from a mid-weight cotton canvas, it's characterised by traditional utilitarian features, including a clean French-front placket and multiple pockets.

Appearance Seersucker Shirt

Versatile, airy and elegant, seersucker is the quintessential summer fabric. This season, we've got our eyes on this seersucker shirt from Danish label Appearance. Made in Portugal from organic Pima cotton, it's soft, durable and built to last, making it the sort of piece you'll reach for time and again.

Wax London Mustard Crinkle Stripe Didcot Shirt

Wax London's shirting contingent features a bevy of prints and patterns to choose from, but this easy-to-wear crinkle stripe iteration of the brand's bestselling Didcot Shirt gets our pick. The classic camp collar and vertical stripe pattern recall old-school bowling shirts from the 1950s. Tuck it into belted wide-leg trousers and team with canvas trainers for a contemporary take on retro style.

ISTO. Chambray Shirt

Lisbon-based label ISTO.'s workwear-inspired Chambray Shirt is a casual classic. Crafted from 100% organic cotton, it's soft yet ultra-durable, so it's guaranteed to stand the test of time. Roll up the sleeves and leave the top two buttons undone for a relaxed everyday look that screams off-duty.

Closed Utility Long Sleeve Shirt

With its roots in denim production, German label Closed remains a fantastic go-to for relaxed everyday staples, casual shirts included. This utilitarian-inspired long-sleeve shirt is crafted from dark Italian denim, and features flap pockets and military-style buttons. Embrace the workwear aesthetic by teaming it with loose cargo trousers and canvas high-top trainers.

ASKET The Denim Shirt

The denim shirt is a casual wardrobe hero that will inject just the right amount of laid-back elegance into any ensemble. This version from ASKET is crafted from heavyweight organic cotton and finished with mother of pearl buttons for an elevated take on the menswear staple. Wear it with chinos or jeans if you're feeling brave enough to tackle the double denim trend.

CDLP Pool Shirt

CDLP creates some of the most cutting-edge casual shirts for men, both in terms of style and construction. This playful printed shirt is crafted from Ecovero, a premium viscose fibre that's derived from wood pulp and produced with significantly lower energy and water than generic viscose. Stylish and sustainable, what's not to love?

L'Estrange Collarless Linen All Day Shirt

Another elegant grandad collar shirt, this time from London label L'Estrange. Crafted from a silky linen-cotton blend with just a hint of stretch, it's designed to be worn all year round. Team it with shorts and sandals in summer and jeans and Chelsea boots in the colder months.

Forét Beam Tencel Shirt

This button-down shirt from Forét is cut from an eco-friendly tencel fabric, offering equal parts style and sustainability. Give it a casual edge by throwing it over a plain white tee and teaming with selvedge denim jeans and leather trainers.

The Resort Co Terry Short Sleeve Shirt

Embrace the terrycloth trend and beat the heat in The Resort Co's Terry Short Sleeve Shirt. Handcrafted in Portugal from 100% organic cotton, it's super-soft and breathable. Pair it with The Resort Co's matching terry shorts for an effortless summer look.

Now, check out our pick of the best polo shirts for men.