Katadyn Befree Replacement Cartridge Color:Blue Key features include: Long underarm

Key features include: Long underarm vents with two-way zipper

Signature coal woven label at side

Easily adds height and quickly adapts Sonic Ergo

Our new and improved Women's Classic Thermal Merino Base Layer Pattern 1/4 Zip is here to bring you a better feeling

Katadyn Befree Replacement Cartridge Color:Blue Key features include: Long underarmThis replacement Katadyn BeFree filter works with all BeFree filter systems, including bottles and gravity bags, to give you the freedom to drink anytime, anywhere by filtering water to EPA standards. Features Filters up to 2 liters of water per minute Easy to clean: simply shake or swish to remove debris 0. 1 micron microfilter is tested to protect against harmful organisms, removing protozoa (99. 99%) and bacteria (99. 9999%) to EPA standards Tested