If you’re the type who drinks water straight from the tap, perhaps picking up the iStraw would help prevent you from getting an upset tummy. This device is a lightweight polycarbonate straw that boasts its own internal filtration system. Most contaminants found in water are removed thanks to the micro-filtration process employed by the iStraw, and would be an essential item to bring along on your the next camping trip. The iStraw is capable of filtering up to 500 liters of water before a replacement is needed. It retails for £19.99 a pop.
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