This is an ultra-breathable swaddle that allows your baby to sleep in the comfy arms-up position. My son tried it on a couple times and it has been washed. It is in near perfect condition. Pet free and smoke free home. From the manufacturer: Traditional swaddling usually means tucking your little one’s arms snugly on their chest or sides. The Swaddle UP Silky-Lux is unique in that its patented wings allow for a roomier “arms up” position. This also encourages self-soothing since baby can access their hands. Super-soft and ultra-breathable, the fabric allows you to swaddle quickly with no Houdini breakouts. It’s also a single layer, which reduces the risk of overheating (ideal for room temperatures between 68°F and 75°F). Another important feature: it has a twin zipper for easier diaper changes. Size small fits 8-13 lbs 95% viscose from bamboo, 5% elastane Ideal for moderate climates and room temperatures between 68°F and 75°F Single layer of fabric reduces risk of overheating Certified “hip-healthy” design allows the recommended flexion for hips and legs Twin zipper for easy diaper changes No loose layers to kick off during sleep Machine wash, tumble dry low Questions? Leave a comment below!