Proof is the couture studio of designer Jessica Firestone, located on Queen Street East in downtown Toronto. I create bespoke garments with a focus on expertly fitted, effortless silhouettes crafted from natural fibres. I believe exceptional fit is one of the greatest luxuries a woman can experience.

Every garment begins with a consultation before moving through a series of private fittings at my Toronto studio. Together we'll develop your garment and refine the fit until every detail feels just right. True couture, like all good things, takes time and patience.

For many of my clients, the fittings become more than just appointments. They're a chance to step away, slow down, and spend time doing something just for themselves. They get to enjoy watching their garment come to life while I take care of everything else.

Rooted in couture techniques and years of training, mentorship, and hands-on fitting experience, every garment is designed, fitted, and handcrafted to be worn, loved, and cherished for a lifetime.