Labels:text | screenshot | font | black and white | white OCR: Even with beginning canyons, water temperature also must be taken into account. It will be cold. You will be wet. Sun rarely reaches the bottom of these narrow, deep canyons. Layering and the use of new synthetic materials which dry quickly are wise clothing choices. Capeline, Thermastat, Polypropylene, Supplex nylon and other trade names are used in long underwear and tights which reduce moisture significantly. Fleece is also quick-drying and provides some warmth when damp. Avoid cotton, even cotton briefs, for it holds water which will rob you of your body heat. Use shorts and/or pants with nylon liners or use nylon underwear. Serious, advanced canyons require neoprene wetsuits, even in July. Finally, before venturing into any canyon, mine the locals for their knowledge of it. They've be ...