Recently there has been great interest in flexible electronics and wearables. Traditional electronics fail to satisfy that demand due to being rigid and uncomfortable to wear. As an important element of electronic systems, flexible capacitors are needed in the application of wearables. Poplar fibres, which do not have any usage are in industry, perfectly suit with the demand of market owing to their unique properties. Silver nanowire coated non-woven poplar fibre webs exhibited very good electrical properties and they were quite sensitive to loads.