New With Tag. Swaddle up your favorite little cutie in this 0-3 months boobies swaddle sack! These are a soft, jersey-knit fabric and come with a free matching headband. To use, simply scrunch swaddle up with hands. Start at your baby's feet and work your way up to their shoulders. Once at top of shoulders gently roll and tuck to secure the sack. Strong babies may work their arms out of sack; Features: -These swaddles are made from a soft, stretchy jersey knit fabric. The size fits up to 3 months, varies with every baby; -Cocoon sacks are adorable and easy to use. There are no zippers, no Velcro or snaps, they are soft and comfortable. Washing instructions: Machine wash in cool water.