“Eco‐friendly” can sometimes feel like a buzzword, but at Proof, we make sure our sustainability claims are backed by tangible, verifiable processes. Here’s how we keep it real: Fabrics With Proof We use recycled polyester...

At Proof, we’ve always believed that style and sustainability shouldn’t be at odds. From day one, our mission has been to design caps that look fantastic and feel effortless to wear—while quietly championing a greener...