In January 2025 One Bottle Hydration was pleased to launch a version to fit the Klean Kanteen single-wall widemouth bottles! These bottles have mouths that are slightly smaller than Nalgene bottles so my wide-mouth adapter lids wouldn't fit - but it turns out that I do have about 400 lids from a supplier screw-up that won't fit Nalgene but do fit Klean Kanteen.Please take note - the double-walled Klean Kanteen TKWide bottles require a different system, and I don't make a One Bottle system for the narrow-mouthed bottles!This lid is a black plastic flip-top just like the Nalgene/Hydro Flask version but the adapter on top is 3D-printed in grey with a one-way air vent set next to the tube.This set includes a 43" drinking tube and bite valve (with 3D-printed dust cover) with the black flip-top lid which replaces the factory lid on your bottle. There's also a black plastic clip and velcro to help keep the tube organized!The standard blue TPU tube can be upgraded to a silicone tube for $9 if you're worried about plastic exposure, and you can add an accessory or tube cover (or the accessories combo pack) with no extra shipping charge!The combo pack includes a magnetic tube clip, a cleaning brush, and an extra plastic clip for $8, a 20% savings!Click below for more detail on the customizations!Silicone TubeFull-Length Insulating Tube CoverMagnetic Tube ClipUltralight Cleaning BrushQuick-Connect Adapter