70% Organic merino wool and 30% mulberry silk makes a perfect fibre blend for extra sensitive skins. This is our favourite all-year-round wool fibre blend. The silk adds an extra soothing and cooling property that makes it perfect for both hot and cold weather. The temperature regulating qualities of these fibres are enhanced by this perfectly balanced blend and helps keep you and your child cool and non-sweaty in the heat and warm in the cold. Engel's fine-rib wool/silk blend is approx 190gsm in weight. Cosilana's organic cotton/merino/silk blend is also perfect for super sensitive skins and is a great entry level blend for those not quite ready for Summer woollies while still offering many of the benefits of wearing merino and silk in hot weather.