Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Crux Insulated Tube by CamelBak $18.00 Gray - $18.00 Gray Color Chevron down icon Availability: translation missing: en.general.icons.icon_check_circle icon Only 4 left! 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Looking for Local Pick-up? Choose a store below. Product Locator by Locally Notify me when back in stock Email address Email me when available The CamelBak Crux insulated tube offers 20% more water per sip than previous tubes. Its insulated thermal sleeve helps prevent freezing in cold weather and helps keep your water cool in warm weather.