Spring/Summer Lookbook 2026
This Season at Mr. Sid
After a long winter, spring has arrived—and at Mr. Sid and Sidney, we have you covered from head to toe.
This season brings one of our most exciting Spring/ Summer collections in recent memory. From beachwear to formalwear, the assortment is designed for every occasion, with a palette that moves from vibrant color to soft, gelato-inspired neutrals. Step inside and you’ll feel ready for everything the season has in store.
Our collections from Italy continue to impress with innovative lightweight fabrics that feel as comfortable as they are sophisticated. Rich texture, thoughtful details, and exceptional craftsmanship define this season’s knitwear, wovens, and tailored clothing. We’ve also welcomed new designers to our shoe salon, with a focus on refined casual style and effortless versatility.
Our buying team works year-round to challenge our partners to bring us something fresh, distinctive, and truly special. The result is a collection that feels cohesive, modern, and uniquely Mr. Sid. We’re proud to share it with you in our beautiful store.
There’s also plenty to look forward to this season beyond the clothing. Our calendar is filled with trunk shows and special events, including one of our most anticipated traditions: the Mercato. We’re also excited to introduce a new collaboration with jewelry designer Rachel Brenman, who will be joining us in the Leopard Lounge to showcase her latest collection and help clients find the perfect piece.
So sit back, relax, and enjoy a look at Spring/Summer 2026 at Mr. Sid and Sidney. We look forward to seeing you this season.
Stuart and Barry Segel
The A-Z List
Men
AG
Alden
Alessandro Gherardi
Andersons Belts
Borriello Shirts
Brioni
Bugatchi
Canali
Carrot and Gibbs
Castangia
Cesare Attolini
CLOSED
Creed
Derek Rose
Di Bianco
Edward Green
Eton
Farnese Belts
Fedeli
G. Brown
Gran Sasso
Greyson
Hamilton
Hestra Gloves
Isaia
Italo Ferretti
L.B.M.
L.G.R Eyewear
Manto
Marcoliani
Mauro Blasi
Meyer
MooRER
Nasomatto
NN07
Orchard & Broome
Orto Parisi
Pantherella Socks
Paige
Parajumpers
Patrick Assaraf
Pescarolo
Piacenza
PT01
Randolph
RUBIROSA
Santoni
SAXX
Secrid
Sid Royale
Spivey
Tasc
Tateossian
Torino Leathers
Tramarossa
Waterville
Zanella
Zegna
Women
Anderson Belts
Caliban
CÂLLAS
Camicettasnob
Circolo
Crossley
Eleventy Milano
Gentry Portofino
Giangi
Herno
Homers
Ibeliv
Nine in the Morning
Officine Creative
Rubirosa
SAND
Seductive
Shaft
White Sand
WhyCi Milano
Scent of the Season
Fresh, crisp, and effortlessly refined, Silver Mountain Water is inspired by the cool air and rushing streams of the Swiss Alps. Bright notes of bergamot and blackcurrant open into green tea and an airy ozonic accord, finishing with smooth sandalwood and musk. Clean, modern, and light on its feet, it’s an ideal fragrance for spring and summer—fresh enough for warm days, polished enough for evenings out.
Creed Silver Mountain Water
Better Than Flowers
Skip the expected. Bella Dori Jewelry is a thoughtful upgradebeautiful, lasting, and guaranteed to outlive the bouquet. Designed by Rachel Brenman, each piece blends fine craftsmanship with timeless style, featuring gold, diamonds, sterling silver, and precious stones. Elegant enough for a special occasion yet easy enough for everyday wear, it’s the kind of gift that feels personal, elevated, and unforgettable.
Mr. Sid Guide
Boston ’s BihsuStse
XOXO Sushi Bar
1154 Boylston Street, Chestnut Hill
For a sushi night that feels a little more elevated, XOXO Sushi Bar is worth the trip. Known for inventive rolls, fresh sashimi, standout omakase, and creative cocktails, it’s the kind of spot that works just as well for a casual dinner as it does for a night out. Sleek, energetic, and always a good time.
Featured Cocktail
Ingredients
2 cups watermelon, cubed 1 cup strawberries, halved 1/4 cup fresh lime juice
20 fresh mint leaves
6 oz white rum
12 oz club soda or sparkling water
Optional: simple syrup, to taste
Directions
Blend watermelon, strawberries, and lime juice until smooth. Gently muddle mint leaves in a pitcher to release their aroma. Add the fruit puree and rum, then stir well. Pour over ice, top with club soda, and garnish with mint, strawberry, or watermelon slices.
Summer Tip: Swap in coconut rum for a tropical twist.
Now Serving:Style
Spring/Summer 2026 arrives with sharp tailoring, effortless layers, and standout pieces for every occasion. Shot at XOXO Sushi—one of Boston’s go-to spots for elevated dining and nightlife—this feature blends great style with one of the city’s best nights out.
Alex
Santoni
Blue Loafer
HILTL
Cotton Pant
Borriello
Linen Print Shirt
Megin Spivey Necklace
Moussa
Di Bianco
Loafer
Bogliolo
Pant
Patrick Assaraf
Knit Shirt
Maurizio Baldassari
Jacket
MOUSSA & ALEX XOXO SUSHI, SS 2026
Rubirosa
Sneaker
Berwich
Wool Trowser
Anderson
Braided Belt
Borriello
Linen Stripe Shirt
Manto
Linen Overshirt
Alex
Barry
Tramarossa
5 Pocket
Anderson
Braided Belt
MGF Shirt
Manto Outerwear
Megin Spivey Bracelets
Joey
HILTL
Side Tab Chino
Isaia
Cotton Medallion Pattern Shirt
L.B.M. Jacket
Italo Ferretti
Pocket Square
Megin Spivey Bracelets
XOXOBARRY&JOEY
Katie
Rubirosa
Sneaker
Shaft
Denim Flare
CamicettaSnob
Linen Blouse
L.G.R.
Glasses
Stuart Henderson
Loafer
Tramarossa
5 Pocket
Alessandro Gherardi Shirt
Isaia Jacket
Moussa
Rubirosa Sneaker (See p.#)
PT
5 Pocket
Borriello
Striped Shirt
Jacob Cohen Jacket
Joey Rubirosa Sneaker
PT01 Pant Isaia Polo Manto Linen Shirt Jacket
Stuart Barry
Officine Creative Loafer
Pescarolo
Jeans
Finamore White Shirt
Tramarossa 5 Pocket
Anderson
Braided Belt
Alessandro Gherardi Shirt
Megin Spivey Bracelets
Di Bianco Shoe
Zegna Suit
Fioroni Knit
STUART WEARING ISAIA XOXO SUSHI, SS 2026
Alex
Barry
Santoni
Sneaker
Tramarossa
5 Pocket
Bugatchi
Knit
Stuart
Sid Royale Windbreaker AG
Jeans
Maurizio Baldssari
T-Shirt
Herno
Jacket
BARRY & STUART WITH CHEF KEGAN XOXO SUSHI, SS 2026
Jacob Cohen
White Pants
Patrick Assaraf
Button Up Shirt
Castangia Jacket
Castangia Suit
Alessandro Gherardi Shirt Moussa
A new season calls for a fresh perspective. This collection blends refined tailoring, effortless layers, and standout pieces designed for everything from daytime gatherings to evenings out. Inspired by the ease of coastal living and the polish of Palm Beach style, the palette moves through soft neutrals, ocean blues, rich textures, and luxurious fabrics. Shot inside a stunning residence, each look balances comfort, sophistication, and modern elegance.
Her Look
Shaft
Lightweight Denim
Sun Dress
Peplum Jacket in Sage
His Look
AG
Easy Linen Jean
Eton
Elevated Striped Shirt
Boglioli
Linen Glenn Plaid Jacket
Rosi
Pocket Square
His Look
Jacob Cohen
Denim
GMF
Seersucker Cotton
Striped Shirt
Finnamore
Linen
Anderson
Suede Belt
Di Bianco
Misano Marine
Wool Shirt Jacket
Her Look
Rubirosa
Judy Do White/Yellow
White Sand
Cropped White Cotton Pant
CamicettaSnob
Blue Floral Blouse
WhyCi Milano
Safari Jacket
Anderson Suede Belt
His Look
Officine Creative
Halo Suede Sneaker
Marco Pescarolo
Tropical Wool 5 Pocket
Tropical Wool Zip Front Shirt Jacket
Maurizio Baldassari Active Wool T-Shirt
Herno
Rain Jacket
Her Look
Rubirosa
Judy Do White with Brown Heel
Shaft
Denim Lino Jean
Circolo
Cotton V-Neck T-Shirt
Herno
Lightweight Raincoat
Rubirosa Judy Jeans
Marco Pescarolo
Cotton Single Pleated
Denim Pant
Fedeli
Panamino Cotton Shirt
Summer Cashmere
Quarter Zip Sweater
His Look
Her Look
Rubirosa Judy Do White Lace Couture Shaft
Denim Lino Jean
Denim Drawstring Cropped Top
His Look
Santoni
Malibu Loafer Brown
Isaia
Delain Selection Soft Touch Wool
Suit with Side Tab Trousers
Cotton Striped Shirt
Rosi
Pocket Square
Her Look
Officine Creative
Oliver Ballet Flat
WhyCi Milano
Linen Wide Leg Pant
Giangi
White Cotton Button Down Shirt
Circolo
Seersucker Cotton Blazer
Di Bianco Neptuno Suede Wingtip
Canali
Light Blue Microcheck Suit
Eton
Navy Knit Stretch Shirt
Anderson Suede Belt His Look
Her Look
Homers
Black Loafer
White Sand
Textured Floral Skirt
Le Sarte
Pettegole Sheer Blouse
SS 2026
Strength in Style: Honoring our Local Heroes
At Mr. Sid, we’ve always believed that style is a reflection of who you are—not just what you wear. This season, we’re proud to spotlight two individuals who embody strength, courage, and quiet confidence every day.
Olivia and Fran aren’t models—they’re firefighters serving their community in Brookline, Massachusetts. In partnership with Eleventy Milano, we wanted to capture them as they are: strong, grounded, and effortlessly themselves. Shot inside the firehouse across from our store in Newton, this feature is about more than clothing. It’s a tribute to character, service, and the kind of confidence that never needs to announce itself.
Essentials for Him
Nothing updates a wardrobe faster than a new pair of frames. This season’s eyewear brings fresh shapes, lightweight comfort, and just the right amount of personality— an easy way to sharpen everyday looks while adding a polished finishing touch.
Handcrafted in Italy with a focus on comfort and understated luxury, Henderson Baracco shoes bring effortless sophistication to everyday dressing. From refined Venetian loafers to sleek suede sneakers, each pair blends artisanal craftsmanship with modern versatility. Polished enough for tailored looks, relaxed enough for denim, and always an easy choice on the go.
Inspired by the spirit of the Italian coast, Tiki Napoli delivers swim and resortwear with color, character, and effortless style. Perfect for beach clubs, poolside afternoons, and every getaway on the calendar.
A great fragrance is as important as the jacket or shoes that go with it. This season’s selection ranges from fresh and clean to rich and refined, offering something for every style and occasion. Featuring sought-after names like Creed and Acqua di Parma, these scents bring the finishing touch to spring and summer dressing—confident, polished, and memorable long after you leave the room.
Bugatchi’s waffle-knit
Johnny collar shirts combine breathable texture with a refined retro edge. Soft, lightweight, and sharp without trying too hard, they’re made for dinners out, weekend plans, and summer nights.
AG brings its signature modern fit and premium feel to the warm-weather staple. Lightweight, easy to wear, and available in two versatile colors, these drawstring pants strike the balance between comfort and clean style. Paired with lightweight knits from Gran Sasso, the look feels relaxed, refined, and ready for everything from travel days to dinner by the water.
Essentials for Her
Small in size, big on function. Secrid wallets are designed to keep everyday essentials organized with a slim profile, premium leather finishes, and the brand’s signature pop-up card access. The aluminum core helps protect cards from bending and unwanted RFID communication, while the compact design slips easily into any bag or pocket. Smart, stylish, and made for modern life.
Easy polish for everyday dressing. A softly tailored blazer and clean white tee from Circolo pair effortlessly with denim from Nine in the Morning for a look that feels modern, relaxed, and ready for anything on the calendar.
A jacket and striped shirt from Herno pair with linen denim from Nine in the Morning and Rubirosa Judy Do sneakers for a look that feels relaxed, modern, and ready for wherever the day goes.
The right shoes can set the tone for the entire season. From sleek loafers by Officine Creative to fresh, fashionforward sneakers from Rubirosa, this collection blends comfort, craftsmanship, and everyday versatility. Easy enough for daytime, polished enough for evenings out, and designed to move effortlessly through everything on your calendar.
Great denim is the foundation of countless spring looks. These jeans from Shaft bring an easy, flattering fit in fresh seasonal washes, while Rubirosa sneakers add a polished, everyday finish. Clean, versatile, and ready to wear on repeat.
Warm-weather dressing starts with great texture. These knit tops from Eleventy Milano bring effortless polish through soft, breathable yarns and beautifully considered details. Easy to style, elevated to wear, and perfect for everything from sunny afternoons to summer evenings out.
A crisp blazer from Herno layers over a striped shirt by SAND and denim from Nine in the Morning for a look that feels polished, modern, and effortlessly wearable from day to night.
Bella Dori Jewelry
Some gifts are enjoyed for a moment. Others are worn, remembered, and treasured for years. That’s the spirit behind Bella Dori, now featured at Mr. Sid. Designed by Rachel Brenman, the collection blends fine craftsmanship with timeless style through pieces crafted in gold, diamonds, sterling silver, and precious stones.
Inspired by her daughter Bella and shaped by a lifelong creative path in fashion and design, Rachel’s work feels deeply personal while remaining effortlessly elegant. The result is jewelry that makes a statement without ever trying too hard—beautiful for special occasions, meaningful enough for milestones, and easy enough to wear every day.
Visit Mr. Sid’s Leopard Lounge to discover the collection and find a piece to wear, gift, and treasure for years to come.
A HISTORY OF ELEGANCE.
