Nature Baby: Organic Baby Clothes & Natural Baby Products Nature Baby US Nature Baby Nature Baby Nature Baby River Tee Natural Nature Baby Core Baby Tee Only $ 17 Organic Basics. The merino long sleeve essential tee is made from beautiful, soft, pure merino wool. Features an envelope neck on small sizes for easy dressing and crew neck on size 3y and up. An essential item for the cooler months and a great layering piece! The merino wool is certified by ZQ Merino. This ensures the highest standards of animal welfare, environmental care, and social responsibility. Read more here. * ZQ certified Merino wool * 100% pure merino wool jersey * envelope neckline on sizes 3 6m to 2y * crew neckline for sizes 3y to 5y * scooped hemline * detail stitching at neckline