Polar Ucos Grey Junior The most versatile Multifunctional Neckwear for cold weather, made from recycled plastic bottles and offering lofted warmth with PrimaLoft® Fleece. Flip it, twist it, fold it you can wear Polar as a neck warmer, hat, balaclava and more to keep Youth warm doing all their favourite outdoor winter activities. PrimaLoft®Bio™ Fleece is biodegradable and is designed to return to nature. *Just on Solid Colors. PrimaLoft® Bio™ Fleece is biodegradable and is designed to return to nature.