The womens Pack-it is an unlined packable overtrouser. Its your emergency wet-weather legwear built on over 30 years experience in outdoor clothing. The Isolite fabric technology provides 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 or wherever suits. 100% Polyester. Regatta Womens Overtrousers Sizing (Waist Approx): S (26-28in/66-71cm), M (30-32in/76-81cm), L (34-36in/86-92cm), XL (38in/97cm). Ref: UTRG1170