Ключевые слова: altitude, athlete, backpack, blue, body, climbing, competition, country, cross, extreme, footwear, hiking, hydratation, jogger, jogging, landscape, leg, legs, man, marathon, motion, mountain, muscular, outdoor, peak, people, race, rocks, run, runner, running, shoes, sky, sneakers, sport, stamina, toilet, track, trail, trail running, trek, trekking, ultra, ultramarathon, uphill, vest, walking,