Brooks Brothers has gone militia again, this time bringing along its fun shirt for the ride. Well, kind of.

Brooks Brothers and Briefing are back together for their second collaboration, which features military-style helmet bags inspired by the OG fun shirt.

One of the collaborative bags features mismatch camouflage prints, nodding to the signature colorful, patchwork button-up that's been with Brooks Brothers since the 1970s.

Beyond Brooks Brothers, the fun shirt has become a staple piece across American prep brands alike. Names like Rowing Blazers and Polo Ralph Lauren have their own playful, multicolored striped shirts, too.

Brooks Brothers' collaborations often strikes the perfect balance between its Americana tastes and other brands' design languages. For instance, the Brain Dead collab is a perfect meeting of Brooks Brothers' timeless prep and California's effortless cool.

The brand also once linked up with Junya Watanabe MAN, a fashion label known for referencing military gear and workwear. Together, they designed slick suits crafted with a touch of army toughness.

Briefing works directly with a legitimate military factor in the USA to make its practical handbags and fashion collaborations. The same production applies for the Brooks Brothers team-up, making the helmet bags not only "fun" but also functional.

The latest collaboration will be available for pre-sale on Briefing and Brooks Brothers' websites starting on August 13. It'll then get a wider release on August 20.

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