Grayl Geopress One-Way Drink Mix Valve Arcade Belts Integrated BioStretch seams

Integrated BioStretch seams

more flexible

and built it with enough cushioning to keep you cozy when the going gets weird

The wrap shape and megol nose pads mark the way to long wearing comfort

Is that the sound of the ocean calling your name

Grayl Geopress One-Way Drink Mix Valve Arcade Belts Integrated BioStretch seamsDescription Features Specifications A feature no other drink thru filter bottle can deliver, the GeoPress One Way Valve allows electrolytes and sport drink mixes to be added to clean purified water without compromising the integrity of the filter. Give your GeoPress a boost! In April of 2023, Grayl redesigned their Cartridges to accommodate a One Way Valve. It's a significant upgrade that includes a new "core" plus "flow channels" making it possible