Regatta Mens Pack It Overtrousers - Navy The Mens Pack It Overtrousers from Regatta. The trousers are perfect for on-the-go protection. They're waterproof and breathable and come with an elasticated waist to keep you agile. Pack them away in the convenient stuff sack. Material & Care Material Content: Polyamide Washing Instructions: Machine Washable Regatta makes reliable outdoor clothing designed to make adventure accessible. Founded in Britain, the brand combines practical functionality with all-weather comfort. From hikes to everyday errands, its pieces are built to perform.