Catherine has been spotted wearing jumpers from Sandro, a French luxury brand known for its trendy and contemporary designs. She wore beachwear while sailing, which included a Sandro striped top and LK Bennett wide-leg trousers. To complete her look, she opted for popular Superga sneakers. The only high-end item in her outfit was a pair of gold leaf earrings from Kiki McDonough. In 2020, Catherine and Prince William interacted with Shout volunteers to celebrate the charity's first anniversary.

For the event, she opted for a white Sandro cardigan, which featured short sleeves, a V-neck, and a cropped silhouette with patterned buttons for added detail. In late November 2020, during a video call for the Hold Still project, fashion fans on Twitter noticed Catherine wearing a matte blue Bowden cardigan. The elegant cardigan is made from a luxurious blend of merino wool and cotton, and features a chic scalloped collar and a semi-fitted fit, making it the perfect addition to your wardrobe.

In December 2022, Catherine wore a cropped black sequin cardigan by Self-Portrait for the Together at Christmas Carol broadcast on Christmas Eve. Her outfit exuded festive glamour, with details like a round neckline and beaded buttons for added sparkle. While many opt for festive jumpers, Catherine has shown that a fashionable cardigan can be a more chic option for a variety of winter occasions.

Catherine also owns a vibrant red cardigan from Miu Miu, which she has worn twice at Christmas concert events. The first time was in 2020-21 when she presented the concert, and again in 2023 at a tea party. At the latter event, she styled the festive red cardigan with matching trousers and naturally curled hair, opting for a natural makeup look. Catherine often pairs her cardigans with skinny jeans or boots, striking a balance between comfort and sophistication, which suits her active lifestyle.

Her sweater choices always demonstrate her knack for combining timeless style with comfort, whether on formal royal duties or casual outings. From cozy pieces to luxurious tailoring, Catherine's wardrobe inspires fashion lovers, proving that even simple sweaters can achieve royal elegance with the right accent.