Winter Thickness. Fleece inside and outside. Suitable for newborn upto 1year old Universal fit, suitable for 3 and 5 point harness. It pulls through the blanket, so the integrity of the harness isnt compromised.Baby is securely fastened with the harness and no blanket inbetween. The blanket folds around the outside, keeping the baby fastened and cosy. All Cosy car seat blankets are handmade and individual. Design/pattern placement can vary from blanket to blanket.