The Baby Marlin Magic Sleep Suit in size Large (6-9 months) is designed in a cozy blue fleece material with a soft cotton inner lining, perfect for keeping your little one warm and comfortable during naptime or bedtime. The long sleeves and one-piece design make it easy to dress your child in a secure and snug manner. Machine washable for easy care, this sleep suit helps improve sleep quality and is suitable for all seasons, making it a versatile addition to your baby's wardrobe. Ideal for helping your child sleep through the night in a cozy and secure environment.