Colette & Juliette is a Swiss-based destination for curated pre-owned designer fashion, offering more than 2,500 carefully selected pieces from over 300 designer brands. The collection brings together contemporary and vintage finds, with an emphasis on authenticated items in excellent condition. Each piece is checked for authenticity, and product descriptions and photographs are intended to show its condition clearly.

Shoppers can browse clothing and accessories across a wide range of categories, including jackets and coats, dresses and skirts, knitwear, shirts and blouses, trousers, denim, scarves, hats, shoes, bags, and other accessories. The assortment features designer labels and individual pieces, from everyday wardrobe staples to rare vintage and archive finds. Colette & Juliette also offers never-worn items and a special sale section for pieces with minor defects.

The online shop serves customers internationally, with worldwide shipping from Switzerland and tracking available for each order. Shipping costs are calculated at checkout. Overall, the brand combines designer resale, carefully selected fashion, and access to distinctive pre-owned pieces in one curated collection.