100% extrafine merino wool - 18.5 micron, 190gsm A warm cocoon for your baby to rest and grow, our Merino Bundler Nightgown is a staple for your baby's first few weeks. Designed for easy changes, with a wider fit for cloth nappies and an elasticated bottom. Built-in turn down mittens for added warm and scratch protection. Envelope neck opening for effortless dressing. Perfect for layering, wearing under a swaddle or on their own.