Keystone, CO

What to wear in Keystone, CO

Year-round, casual clothes are appropriate pretty much everywhere, with the occasional need for "smart casual" in a few upscale restaurants. Layered clothing and a medium-gauge jacket are the best choice for spring and autumn, and loose, natural fibers in summer. Wear heavy, layered, waterproof clothing and boots in winter.

Advising for Keystone, CO visitors

We strongly advise that you confirm the following information and regard this only as a basic guide.

Altitude

At 8,750 feet, "the air is rare" with an oxygen pressure 40% lower than at sea level. This thin atmosphere makes "low landers" a little sluggish at first, and preventative measures are recommended, like avoiding alcohol and caffeine for a few days, drinking lots of fluids, and avoiding overexertion for 2-3 days.

Sunburn

The combination of bright sun and reflective snow can cause skiers to burn more easily than at lower elevations. Wear sunblock and sunglasses with UV protection.