The Lastu pants are perfect for use on top of base layer long johns or tights, as a weatherproof layer: wind stops right on the surface and a membrane keeps you safe from rain. Cuff adjustments make for worry-free use on a bicycle. When needed, these pants also pack down very small - they're useful even during summer in case it rains. - 2.5-layer structure - Halti DrymaxX All Weather 2,5L Motion Dx ECO RECY material - Waterproof, breathable, windproof - No separate liner fabric - Waist adjustment - 3/4 length side zippers for ventilation and easy on and off, even when wearing shoes - One zipper pocket - Halti ECO product thanks to recycled material and PFC-freedom This product does not contain PFC.