Facebook Twitter Pinterest Large View Thermomaster Growing Foal Rug Premier Equine PremTex Horse Cooler Rug Pakenham Western Tempest Original Mesh Cooler Rug www.horsecare.ie. ThermoMaster Growing Foal Rug Unique overlapping and adjustable front closure expands to fit the smallest to the largest growing foal. Self gripping front closures adjust to fit from 28" to 40" rug size. The rug also has an adjustable surcingle and leg straps. Availability: In stock