Top 10

Oxygen Plus

For a calorie-free, caffeine-free boost of all-natural energy, give your health conscious friend portable, enriched oxygen canisters from Oxygen Plus. These canisters contain 95 percent oxygen, which is more than four times the amount found in ambient air. This is especially great for the skier who finds herself at high elevations with "thinner" air. Available for $5.99 and up.