Sunday Swagger Fuses Irish Heritage and California Cool with Guinness Collab

Sunday Swagger, the fast-rising performance golf and lifestyle apparel brand known for blending cheeky personality with functional style, has done it again. This fall, the California-based company reunites with legendary Irish brand Guinness to deliver an expanded collection that celebrates heritage, individuality, and iconic design.

In their second collaboration of the year, Guinness x Sunday Swagger is bringing a new wave of energy to the fairway. What started as a cult-favorite capsule earlier in 2025 has now evolved into a full-fledged seasonal drop, bolder, richer, and infused with timeless flair made to shine both on and off the course.

The new collection debuted this week online and in stores across the U.S. and Dublin, fueling the hype among both golf lovers and Guinness loyalists. Fans can shop the exclusive collection now at SundaySwagger.com and other select locations.

A Toast to Style, Comfort, and Heritage

“Our customers have truly embraced our partnership with Guinness, and we’re delivering another collection full of signature style,” said Mark Carmona, Founder of Sunday Swagger. “Guinness is one of the world’s most beloved brands, and this collaboration is all about blending that globally recognizable heritage look and feel with our flair for the bold.”

This partnership builds on Sunday Swagger’s mission to redefine golf apparel,  rejecting dull performance wear in favor of high-quality, statement-making designs that reflect confidence, color, and character.

Performance Meets Personality

As part of the fall lineup, men can choose from six fresh polo prints, each made from the company’s signature moisture-wicking, four-way stretch poly-spandex performance fabric. Engineered for breathability and comfort, these shirts are designed to keep players cool under pressure, from the front nine to the clubhouse happy hour.

Complementing the shirts are two new button-up designs that seamlessly transition from golf course to dinner reservation, and a quarter-zip layering piece ideal for crisp autumn mornings.

For women, Sunday Swagger expands the lineup with two new sleeved tops that capture the same playful yet timeless spirit of both brands. The silhouettes balance movement and modern design, creating a look that’s equally strong and feminine.

Explore the full lineup here: Guinness x Sunday Swagger Collection.

The Details: Accessories Designed to Elevate

No Sunday Swagger outfit is complete without the right accessories. The fall capsule delivers a series of fresh add-ons designed to complete every outfit:

• Two limited-edition golf towels featuring sleek Guinness artwork

• Four collectible ball markers

• Two new headcover designs

• Four premium hats that mirror the same colorway as the apparel line

• And the show-stealer,  a custom Guinness x Sunday Swagger Beer Sleeve, built to hold multiple cans of Guinness Draught, keeping them perfectly chilled from the first tee to the 18th hole

The collaboration’s accessories merge the heritage of Guinness with the playfulness of modern golf fashion,  proving that style and practicality can happily co-exist.

Where Classic Pint Meets Course Performance

This partnership represents more than fashion. It’s a fusion of two brands that share mutual values: authenticity, camaraderie, and a love for craftsmanship. Guinness brings over two centuries of heritage, iconic design, and distinctive branding to the table, while Sunday Swagger injects its California-cool personality and performance focus.

At its heart, the line bridges Irish tradition with modern golfing culture,  an aesthetic fusion that resonates with fans of both brands. From deep black tones and creamy whites reminiscent of Guinness’ signature pint to unexpected pattern pops inspired by Sunday Swagger’s SoCal roots, each piece in this release feels timeless, effortless, and sporty.

As Golf.com aptly described the collaboration:

“This partnership enhances Sunday Swagger’s brand equity by aligning with a legacy label that shares values of boldness, individuality, and good times.”

Behind the Brand: Sunday Swagger’s Meteoric Rise

Since its founding in 2019 by Mark Carmona, Sunday Swagger has achieved triple-digit annual growth, creating a loyal following among golfers, influencers, and celebrities alike. The brand has already produced over 300 unique designs,  from men’s and women’s polos to outerwear, hats, and accessories.

Each print, such as fan-favorites Splatter, Stylin’, and The Gambler, achieves viral traction on social media, worn by athletes and entertainers who appreciate the brand’s fearless expression of identity.

Sunday Swagger also offers a loyalty membership program, The Sunday Club, giving members exclusive early access to drops, free shipping, 10% cashback rewards, and an annual welcome gift.

Expanding the Footprint

Sunday Swagger’s reach continues to grow across both digital and retail. While U.S. and European customers can shop directly through SundaySwagger.com and flagship outlets, select pieces are also available via distribution partners in Dublin, Guinness’ hometown. The brand has additionally partnered with affiliate programs such as Awin and SkimLinks, expanding its digital presence in the global lifestyle and sportswear markets.

Learn more about upcoming drops, collaborations, and community events by following @SundaySwagger on Instagram.