-2 sleep sacks sold together. Blue one has minor wearing around logo (see photo) otherwise in perfect condition. -100% cotton -Helps control the Moro reflex for babies who no longer like to be swaddled, but still need a bit of security around their arms, providing the perfect transition to the greater freedom of movement. -Snug upper body with the 4-way stretch fabric and a unique sleeve design helps reduce startle reflex without overheating your baby; roomy lower sack design for continued healthy hip development. -Two layers of 100% cotton knit fabric are lightly quilted with just the right touch of polyester fill providing a TOG rating of 1.5, perfect for moderate seasons, climates and environments. -2-way zipper, with tab covers at top and bottom, allows for easy dressing and diaper changes; "Back is Best" message reminds all caregivers to put Baby to sleep on their back.