Mercis is collaborating with retailer Uniqlo for a kidswear collection featuring Dick Bruna's Miffy, as the storybook character celebrates her 60th anniversary this year.

The spring/summer range will roll out across Uniqlo stores in 15 countries this month, beginning with the U.K. on March 23.

The range contrasts Bruna’s minimalistic illustrative style with bright primary colors in girls' tunic tees and shorts, as well as infant tunic tees, crew neck bodysuits and pajamas.

The Miffy x Uniqlo collection will be available in Australia, China, France, Germany, Hong Kong and Macau, Japan, Korea, Malaysia, Philippines, Russia, Singapore, Taiwan, Thailand, the U.K. and the U.S.

“We are thrilled that Miffy is partnering with Uniqlo during her 60th anniversary year," says Marja Kerkhof, managing director, Mercis, Dick Bruna’s publishing company. "The timeless nature of Dick Bruna’s minimal style as well as the affection people have for Miffy will no doubt ensure this range is extremely popular with Uniqlo and Miffy fans alike.”

Additional anniversary products for Miffy include commemorative stamps, new publishing products, exhibitions and an art parade.