Frozen hydration tube while skiing? Not with RAVERUNNER. Stay hydrated, even in the coldest conditions—our packs keep your liquid flowing, no matter how low the temps drop. • Freeze-Resistant Hydration 🥶 • 17oZ soft flask included 🥤 • Fits UNDER or OVER your ski jacket🧥 • Multiple pockets to carry the essentials⚙️ • Easily Accessible phone pocket📱 • Back Panel pocket for added Hydration💦