The question contains a chronological impossibility: there were no Mount Everest climbing attempts in the 10950s (or 10,950s), nor could there have been. The premise reflects a fundamental misunderstanding of both mountaineering history and the timeline of human engagement with the world's highest peak.
Mountaineering as sport: Emerged in mid-18th century Europe (first recorded alpine ascents ~1740s). Organized alpinism began with the Alpine Club's founding (1857).
Everest recognition: Identified as world's highest peak in 1856 by the Great Trigonometrical Survey of India. Named for Sir George Everest in 1865.
First attempts: 1920s British reconnaissance expeditions. First serious summit attempt: 1922 (Mallory, Norton, Somervell reached 8,320m). First confirmed summit: Edmund Hillary and Tenzing Norgay, May 29, 1953.
If "10950s" refers to ~10,950 BCE: this is the Younger Dryas period—end of the last Ice Age. Humans were hunter-gatherers; the Himalayas were heavily glaciated; no climbing equipment, clothing, or physiological knowledge existed.
If it's a typo for 1950s: the 1950s saw the first successful summit (1953) after multiple attempts. Climbers wore layered wool, cotton, silk, and early nylon—heavy, moisture-retentive, and vastly inferior to modern synthetics. Oxygen systems were rudimentary. Tents were canvas. Boots were leather with nailed soles.
1953 summit gear: Shetland wool base layers, wool sweaters, windproof cotton gabardine outer suits, kapok-filled down jackets (novelty), leather boots with Vibram soles (new), cotton/nylon tents. No Gore-Tex, no synthetic insulation, no modern plastics. The contrast with today's 800-fill down, Pertex shells, and carbon-fiber equipment underscores how material science transformed high-altitude survival.