James C Brett Happiness Baby DK with everfresh technology is an antimicrobial acrylic fibre that has been developed by Aksa the world's leading acrylic fibre producer. The everfresh fibre has zinc ions clinically engineered into the heart of each & every fibre. Unlike other antimicrobe spray on technologies which will wear off after washing everfresh remains in the heart of the yarn wear after wear, wash after wash. Perfect for all baby garments, blankets and accessories.