The Widepac hydration reservoir from Source ensures a reliable supply of fluids during any outdoor activity—whether you're cycling, running long distances, or hiking in the mountains. Its modern, redesigned construction and innovative materials keep your drinks fresh and free from any unpleasant plastic taste. The wide opening makes filling easy, even with ice. The interior surface, treated with Glass Like™, is exceptionally smooth, preventing dirt buildup and mold formation. When using clean water, simply let the reservoir dry; for sugary drinks, a rinse with warm soapy water is enough. Compatible with backpacks from various brands, the Widepac is your trusted companion for any adventure.