Pippa and Carole Middleton will be careful not to “overwhelm” Princess Kate as they step out to support her next month, a commentator has claimed.The Princess of Wales’s mother and younger sister will likely attend the Together At Christmas carol concert on December 6, as they have attended every year in the past.This will be a huge show of solidarity from the Middleton family, especially after Kate’s “brutal year” of undergoing chemotherapy.Pippa, 41, and Carole, 69, are understood to have rallied around Princess Kate over the past year as she stepped away from public life.Carole and Pippa Middleton careful to ‘not overwhelm’ Princess KateGettyBoth women live in Berkshire near the Prince and Princess of Wales and their three children, Prince George, 11, Princess Charlotte, nine, and Prince Louis, six.James Harris, the Regional Sales Manager at Austen & Blake, spoke exclusively to GB News, predicting that Carole will “avoid overwhelming” her eldest daughter with her fashion choices.He explained: “Carole may choose to opt for classic, luxurious pieces like her beloved pearl earrings or necklace.”Pearls are a great way of adding a glamorous edge to an outfit and Carole never overwhelms her looks with accessories, always opting for chic ensembles.”Carole Middleton and Pippa Middleton attending Kate’s first Christmas carol concertPAMeanwhile, Pippa will likely avoid being “too overpowering”, according to the fashion expert.Harris continued: “For both Carole and Pippa, the focus will most likely be on timeless, elegant jewellery that complements their outfits, with just enough sparkle to match the festive occasion.”Pippa often opts for delicate necklaces and bracelets.”Her layered gold or diamond necklaces could be a strong choice, as they would bring a festive sparkle, without being too overpowering.”Carole Middleton and Pippa Middleton photographed in 2022 at Westminster AbbeyPAPippa Middleton wearing a festive trouser suit in 2023 to the carol concertPACarole will likely be accompanied by her husband, Michael Middleton, the father of Kate, Pippa and James.In addition, Pippa could potentially bring her husband and the father of her three children, James Matthews.James Middleton, the youngest of the three Middleton siblings, has only attended Kate’s Christmas carol concert once before.In 2021, he stepped out with his wife, Alizee Thevenet, to support the Princess of Wales at Westminster Abbey.