UltraPress® Replacement Purifier Cartridge Colours:BLACK These mid-calf length socks feature

These mid-calf length socks feature a merino wool terry loop liner covering the full inside of the sock offering exceptional thermal protection and a comfortable fit

Reinforced corners ensure durability and strength and double stitched webbed loops across the ridge line and at the tie-down points allow for taut pitching in any weather

RWS (Responsibly Sourced Wool)

Lid: PP (Polypropylene)

These strong stainless steel plates stand up to heavy use yet don’t add a lot of weight or bulk to your pack

UltraPress® Replacement Purifier Cartridge Colours:BLACK These mid-calf length socks featureReplacement purifier cartridges for the UltraPress; are designed to last 300 cycles (40 gal. 150L). Lifespan will decline when purifying water with high levels of silt, sediment or tannins. Cartridge press time increases towards the end of the cartridge lifespan; when press time reaches 25 30 seconds, the cartridge should be replaced. Cartridge continues to protect, even as press time increases. Features Removes waterborne pathogens (viruses,