Ground-breaking designs were also brought to market in diverse areas such as backpack design, camping mats, and other areas of equipment manufacture. Famous climbs such as Annapurna (1970) and Everest (1975 twice and 1978) using Karrimor equipment (covered in prestigious international mountaineering journals such as Ken Wilson's "Mountain" ) also had a lasting impact on the company's profile in its field, and gave its products a 'reputation for functionality and usability'. At times, this left manufacturing output "struggling to keep up with demand".