Geopress Replacement Cartridge Color:Black UPPER: Limited edition polyester jacquard

UPPER: Limited edition polyester jacquard webbing upper wraps around the foot and through the midsole for a customized fit

while maintaining the same amount of cushioning and support

a crotch gusset

Insulated hood with elastic binding to seal in warmth

all using bonded nylon thread

Geopress Replacement Cartridge Color:Black UPPER: Limited edition polyester jacquardReplacement purifier cartridges for the GEOPRESS are designed to last 350 cycles (65 gal. 250L). 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. Removes waterborne pathogens (viruses, bacteria, protozoan