CamelBak’s Chem Bio Reservoir™ 4.0 (CBR 4.0) with DuraFlex™ Barrier Technology resists penetration by potentially lethal chemical and biological agents. HydroGuard™ technology inhibits the growth of bacteria on reservoir and tube surfaces. Does not protect user from bacteria or other disease-causing organisms. Please wash reservoir after each use.

Comes standard with CamelBak’s Water Beast™ durable material, leak-proof screw-cap and Big Bite™ Valve. HydroGuard™ technology inhibits the growth of bacteria on reservoir and tube surfaces. Does not protect user from bacteria or other disease-causing organisms. Please wash reservoir after each use.

CamelBak’s OMEGA Water Beast™ Reservoir is the ultimate protection for an operator’s water supply. The OMEGA™ Water Beast™ Reservoir is the ultimate delivery system for an operator's water supply. The reservoir’s proven durability, OMEGA™ wide mouth opening, and rugged materials ensures the reliable delivery of water during extreme operational situations. Also includes Big Bite™ Valve and HydroGuard™ Technology. HydroGuard™ technology inhibits the growth of bacteria on reservoir and tube surfaces. Does not protect user from bacteria or other disease-causing organisms. Please wash reservoir after each use. Includes Big Bite™ Valve.