Merino Retract is a process by which the yarn and fabric is treated in such a way so the finished product achieves the casual boiled wool look whilst its durability and resilience does not decrease.
To achieve Merino Retract, Merino wool yarns are combined with high-power elastane yarns before or during knitting, so that in wet-finishing the elastane retracts and the fabric structure contracts. The fabric is knitted 15% to 20% looser than normal so the retracted garment does not end up too dense after finishing. Several trials are normally needed to determine the optimum fabric set and finishing routine especially if close fitting garments are being made.
Contact the Woolmark Technical Team for more information.