Brand new USGI ACU color HYDRAMAX hydration system. Made by SDS (Specialty Defense Systems). All the specs can be seen on the website. INTERNATIONAL BIDDERS PLEASE NOTE!!! I will only ship outside the U.S. via USPS Express mail INTERNATIONAL 3-5 day service. This is the only way I can ship and get tracking information. If you do not agree with this then please do not bid. International bidders with less than 10 feedback rating MUST email me prior to bidding!!! I will accept Paypal from international bidders, and only ship to CONFIRMED addresses! Check out my other items and check with me often as I add new auctions frequently!