Source - Widepac Insulator - Hydration system size 3 l, black

The thermal bag itself isn’t bad; it keeps the temperature for several hours even under mountain sun. The issue is that I was under the impression it had an internal tank, but it doesn’t, even though all the listing photos show one. I didn’t even notice that the description clearly states you’re onl… Read more

I bought it for a holiday in the Val d'Aosta. After hours in the backpack under August sun, a sip of fresh water from the water bag is an infinite convenience. When paired with a thermal tube cover, the water stays fresh from the first sip; otherwise the tube water gets hot and then the bag water be… Read more

The 2‑litre Camel Bag fits and keeps the water cold for several hours. For me, it’s a win.

It kept my water cold for hours at 35 °C, even with body heat on the back. It was really worth buying. Highly recommended.