I have recently made a video review for a new yarn brand VlnaHep Perla (pearl in English). This yarn is a combination of 60%bamboo and 40%cotton. This thread has antibacterial and anti-allergic features. It warms you when you are cold and cools you when you are hot. When you double the thread for hats, it is also a perfect for winter time. On top of that it is suitable for babies.