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 and 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.