Italy Fashion Canali — A model wears a creation for Canali men’s Spring-Summer 2015 collection, part of the Milan Fashion Week, unveiled in Milan, Italy, Monday, June 23, 2014. AP

MILAN — The line, long under-rated as one of geometry’s most basic form, is getting a lot of exposure on the Milan menswear runway.

Designers are embracing stripes of, well, every stripe, and using them as a metaphor of sorts to clean up the line, that is the silhouettes, of the collections presented during Milan Fashion Week, in its third day on Monday.

So for next summer, men can expect to be wearing stripes, both fine and bold, along with pulsating, radiating and curving lines, as well as simple checks, all creating optical effects that bely the cleanness of some of the designs. Lines are also being worked into the fabric, in chunky textiles that create an architecture of their own.

EMPORIO ARMANI

Giorgio Armani says he has done a whole sale cleanup of looks for his Emporio Armani collection for next spring and summer.

The predominantly black-and-white collection has a strong graphic component, with lines transmitting a sense of energy from the garment, from steady pulses, webs and waves up to full black and white bold stripes. Color makes cameos in contrasting stripes of turquoise and aqua-green.

“After years of doing a little bit of everything, a melange, florals and ethnicity, finally a little cleaning,” Armani said.

The silhouette is loose and easy, with pleated trousers or drawstring athletic pants. Silk and cotton shirts loosely cling the frame, and T-shirts, worn under coats, are soft.

FRESH DIRECTION AT CANALI

The 80-year-old family-run Canali fashion house is taking a fresh direction with a new capsule collection by young Milan designer Andrea Pompilio.

Since being tapped to show his brand at Giorgio Armani’s theater one year ago, the up-and-comer with 20-years’ experience in fashion, including a stint at Prada, has been fully embraced by the fashion world.

Pompilio said both his own brand, which showed Saturday, and the Canali label depart from the same place: “I am completely obsessed with menswear and especially iconic pieces of the wardrobe.”

For Canali, Pompilio tinkered a bit with the proportions of the look, cropping the trousers, making cuffs a bit deeper, the jackets a bit shorter. The looks also feature flashes of color, like orange, yellow and peacock looks, and pairs formal elements, like a double-breasted suit, with sneakers.

He also includes patterns on silky short and checked suits, finishing the looks with eyewear instead of sunglasses and full-brimmed summer hats.

“You see a lot of fresh inputs for the brand, but actually the DNA is exactly the same,” he said backstage.

GUCCI EARNS ITS STRIPES

The Gucci man for next summer has earned his stripes, along with golden buttons, epaulets, insignias and other trappings of a mariner’s life.

The collection, shown against a background of shimmering water, has a decidedly nautical flair, featuring trim and dignified white, navy and red suits with suggestions of officiality in stripes. But these are not mere costumes. The collection projects both luxury and a free-spirit.

The silhouette is disciplined, with the expected blazer, double-breasted jacket and peacoats, but creative director Frida Giannini also includes jackets with Neru collars and blousons with a contrasting buckle waistband that can function as a shirt or jacket. Pants are lean and straight, or baggier and lose.

Frida Giannini gives the look a modern twist with bold navy and white vertically striped pants and jackets, worn together for an eye-popping optical effect but more often mixed and matched with plain colors.

The stripe also appears on lapels, scarves tucked inside jackets that substitute for ties, and on the straps of the collection’s ample leather duffel and messenger bags.

FAUX DENIM

Here’s a new one: faux denim.

The jeans on the Fendi runway were not at all what they appeared. The shirt was printed cotton and the classic jacket was in reality leather with a denim print.

Besides the denim elaboration, the collection by Sylvia Venturi Fendi also featured woven leather pieces and striped knits, as designers continued their study of the line. Again, there were no ties but silken scarves tucked inside a sweater’s V or beneath a jacket lapel. The color palate was eclectic, with something for every taste. Shoes were mostly slip-on sandals. Bags included a small front-carry pack that stays secure with a triple strap, biker style.

Denim and music have always been a winning combination, as they were on the Fendi runway, where Fendi introduced a new leather-clad colored headphone in collaboration with Beats by Dr. Dre.

BIODIVERSITY IN FASHION

The Apulia-based brand Etro is promoting biodiversity in fashion — using natural fibers in part of the menswear collection for next summer, and promoting a diverse diet.

Menswear designer Kean Etro said they wanted to show how thread could be made out of natural products, not only hemp, which is well-known, but also banana, cereals and milk. Etro said the message behind the collection is “to keep biodiversity running in agriculture.”

The collection opened with a series of looks made from natural fibers, maintaining a predominantly white palate before a color burst of egg blue, salmon pink and canary yellow. Instead of the brand’s familiar paisley, the prints were photographs of plates of food, from fruit to crustaceans.