About Us

Costello's was built alongside the reality of university life — not in spite of it.

Founded in second year, what began as personal ambition has grown into something more intentional. A brand shaped by discipline, creativity, and the pressure of building while still becoming.

Rooted in minimalist and streetwear-inspired design, Costello's is centred around pieces that are understated, considered, and built to last beyond the trend cycle. Every product is created with purpose — refined in aesthetic, deliberate in construction, and designed for everyday wearability.

As the journey continues into third year and beyond, the brand remains a parallel pursuit — a way to support growth, fund a degree, and prove that meaningful things can be built from nothing but vision and consistency.

This is still the beginning.

Our Ambassadors are more than athletes—they're mentors, motivators, and teammates. They help create a positive training environment, support members at every stage of their fitness journey, and bring energy that keeps our community strong and connected.

COZZIE

COZZIE

@cozzielifts

Powerlifter | 19 & at university—built on consistency and hard work, showing what real progress looks like.

10% off first order
5% off every order after
SAM

SAM

@_sxma583

Calisthenics | 19 & at university—driven, focused, and always pushing forward, representing the mindset of growth.

10% off first order
5% off every order after
RUINZZ

RUINZZ

@ruiinzzz

TikTok gaming creator — representing the brand on and off screen.

5% off
SAM

SAM

@samaddise

Athlete & brand ambassador — dedicated to the grind and representing the mindset of growth.

10% off first order
5% off every order after

Our ambassadors are real athletes who represent the Costello's brand. They live the lifestyle, use the gear, and share exclusive discount codes with their communities.