My French best friend wears this one chic summer essential every year, and it’s still available.

      When temperatures begin to rise, a linen shirt immediately earns its place in your wardrobe. Whether it's draped over a bikini while on vacation, paired with coordinating linen pants, denim shorts, or left loose over a dress, it serves as the understated champion of a stylish summer wardrobe. The only hurdle? Finding the perfect cut. Thankfully, With Nothing Underneath's popular Boyfriend Shirt achieves just that.

      Spend a few minutes perusing Instagram, strolling through the elegant avenues of London, Barcelona, or New York, or simply observing any fashion-focused office, and you'll notice it. Relaxed yet not baggy, the Boyfriend Shirt has become one of those rare items that fashionable women count on year after year. Made from 100% linen, it is lightweight, breathable, and designed to improve with each wear. The fit is deliberately easy without being oversized, attaining that sought-after equilibrium between casual and refined. The color options are equally impressive: elegant white, classic black, vibrant red, and timeless pinstripes, each with its own chic appeal.

      It's no surprise that the Boyfriend Shirt has quickly established itself as a staple in this summer's most fashionable wardrobes on Instagram. Continue scrolling to shop this cult favorite below.

      Shop WNU Linen Shirt

      With Nothing Underneath

      The Boyfriend: Linen, White

      Stylish, effortless, and incredibly versatile, it's a wardrobe essential you'll repeatedly wear each summer.

      With Nothing Underneath

      The Boyfriend: Linen, Black

      There’s something so sophisticated about a black linen shirt.

      With Nothing Underneath

      The Boyfriend: Linen, Cornflower Blue

      A blue shirt perfectly embodies the essence of summer.

      With Nothing Underneath

      The Boyfriend: Linen, Navy Blue

      The rich appearance of deep navy is simply stunning.

      With Nothing Underneath

      The Boyfriend: Linen, Mocha and Black Multi Stripe

      Layer it over swimwear, pair it with linen trousers, or wear it half-tucked into denim.

      With Nothing Underneath

      The Boyfriend: Linen, Sky Blue Stripe

      Just add white pants and sandals for an instantly stylish outfit.

      With Nothing Underneath

      The Boyfriend: Linen, Lapis Blue

      This lively blue shade evokes a distinctly Mediterranean vibe.

      With Nothing Underneath

      The Boyfriend: Linen, Grapefruit Pink

      Fun yet sophisticated, this bright pink color is sure to enhance even the simplest summer outfits.

      With Nothing Underneath

      The Boyfriend: Linen, Cardinal Red

      Striking, in the best possible way.

      Shop More WNU Buys

      With Nothing Underneath

      Sloane Dress: Linen, Red

      A linen dress is essential to any exceptional summer wardrobe.

      With Nothing Underneath

      Sóller Shirt: Fine Poplin, Cobalt Blue X Lucy Williams

      The color is absolutely captivating.

      With Nothing Underneath

      The Weekend: Seersucker, Pink and Berry Stripe

      The ultimate shirt for a holiday.

      With Nothing Underneath

      Sifnos Trousers: Fine Poplin, White X Lucy Williams

      These are the must-have summer trousers that fashion enthusiasts can't resist.

      With Nothing Underneath

      The Set: Seersucker Navy Blue Shirt & Boxer Shorts

      Nothing is simpler than a matching set for summer.

      With Nothing Underneath

      Andros Dress: Fine Poplin, White X Lucy Williams