I picked up one of these Recon S-3 hydration packs from Zac Speed. I see a lot of dirt bikers wearing them and I like the fit and connection better than what I have now. I had the gen 1 Nak Pak from Klim and that's since been improved upon a lot but haven't tried it. I was using Fly Racing's hydration pack and didn't have any complaints really but wanted to try something a bit more specialized like as I've seen with Kriega. I will report back with a review in time.
It comes with the standard 3 liter bladder but it has an insulated hose. It also has a back shield for additional protection. It's part of their "CONFIGR8" system where you can mix and match the components if you like to include chest protector, a POV camera (GoPro style) holder, or their Tech Vest with basically more storage in front. You can also choose a waist belt tool holder option. Click here to find out where you can buy one.
You can find out more in this video