Prince George and his baby sister Princess Charlotte have helped bring a boom in sales of childrenswear at high street chain John Lewis. The department store’s latest retail report shows how Kate Middleton and her husband Prince William’s taste for dressing their children in traditional outfits has gone down very well with the masses.

The two-year-old George wore a navy knitted jumper to meet his little sister in hospital in May after she was born. The sale of navy jumpers for boys has increased 69 percent after the occasion. Also the tot wore a red corduroy shorts to Charlotte’s christening in July. There has been 60 percent increase in sale of similar shorts. 

Meanwhile Silver Cross pram like the one Middleton used to push the princess to the St Mary Magdalene Church in Sandringham has garnered a 30 percent increase in sales. Charlotte’s pram was a vintage buggy (1950s Millsons baby carriage). The same pram was used by Queen Elizabeth II 50 years ago for her two younger children.

John Lewis’ own 65 pounds ($100.39) cream “pintuck” long christening gown is flying off the shelves thanks to its resemblance to the royal christening robe. Charlotte wore a replica of the Honiton lace gown that was first used by Queen Victoria’s first-born. Christening wear was also up by 175 percent year this year.

“There’s no doubt Prince George and Princess Charlotte are hugely influential in the fashion stakes. It’s clear that traditional looks have become extremely popular for children and we expect the nation to continue to be inspired by the outfits of Royal offspring for many years to come,” said Caroline Bettis, head of buying for childrenswear and nursery at the retailer.

“Heirloom”, John Lewis’s traditional boys’ clothing range saw big increases in sales of ties, bow ties and braces, which were up 40 percent compared to 2014. In June the navy crocs that George wore the sale of similar crocs increased by two percent. 

Gillian Taylor of GH Hurt & Sons, which made the lacy shawl Charlotte was wrapped in when she was presented to the world, said that they saw a huge increase in orders from all around the world of the shawl. Also, the little royal is bringing smocking back in fashion.