The EVOC Freeride Series (FR) is our SNOW hydration pack product line that includes integrated back protection. With TÜV/GS certified Liteshield Back Protection Technology, these high-quality hydration packs also function as a safety device to help you avoid injury when you crash. Depending on the model, EVOC FR packs are available in as many as three sizes: SM, M/L and XL. To learn more about how to choose the correct size, download our FR Protector Pack Sizing Guide (PDF, 79k).