This is an awesome product. I had other Halo sleepsacks but because they sized so specifically the baby grew out of them quickly and the material was synthetic and not breathable. On the other hand the merino kids sack is great because its adjustable. My son has been wearing his 0-2 since.birth and still at 14 months. So even though this item is pricey its been an investment because i don't have to keep buying those sized ones. Ive probably saved money. And also this sack is made of natural breathable fibers that help regulate babys temperature. I love them. Bought 2 and its been enough. Gonna get a size 2-4 soon since hes growing. This way i know hes not
getting wrapped up in his blankets at night.