depending on how you use it

Built for responsiveness

Tucked snugly into the laser-cut pocket between your shoulder blades

Activity: Rock/Boulder/Hike

Updated Altra EGO™ midsole foam

Tailwind Nutrition Endurance Fuel 50 Servings Lemon Garmin depending on how you useTW EF EU L 50 Endurance Fuel mixes with water to meet all your calorie, hydration, and electrolyte needs, without upsetting your stomach or making your taste buds revolt. Just toss it into a bottle or hydration pack, shake, and GO! Complete calories, electrolytes, and hydration: Ditch the gels, chews, and salt pills and go all day with just Tailwind! No gut bombs: Stomach problems? Youll love Tailwinds Endurance Fuel! Tailwind contains glucose and