explorer filter clear black Size:One Size And it’s always worth looking amazon_inactive And it’s always worth looking after your adventure companions built in a classic eight panel style and finished with &SONS’ new collaboration red logo on the back Katadyn portable water filters are the filtration equivalent of the iconic Swiss Army Knife: Multi purpose functionality and time tested reliability to ensure that no matter where you are or what you’re doing backpacking and travelling – whether you’re drawing water from a river while walking in the hills or setting up a base camp for a trekking party in one of the world’s highest places