Regatta Great Outdoors Mens Classic Pack It Waterproof Overtrousers Polyester, , The mens Pack-it is an unlined packable overtrouser. Its your emergency wet-weather trouser built on over 30 years experience in outdoors clothing. Made from Isolite fabric technology to provide lightweight, waterproof, breathable and wind-resistant protection. Keep them in the handy stuff sack and stow them in daypacks, backpacks, car boots, desk drawers, kitchen cupboards, wherever suits. 100% Polyester.