Artisan Cutlery Wren Frame Lock Blue/Gold Titanium Folding Knife 1825G-BU02 (3.54" SW S35VN) Sheepsfoot The double-walled design keeps condensation

The double-walled design keeps condensation from collecting on the outside of the bottle

Approximate filter life of 1500L depending on quality of water filtered

and even locks in eight different positions

Just about any material is OK

Artisan Cutlery Wren Frame Lock Blue/Gold Titanium Folding Knife 1825G-BU02 (3.54" SW S35VN) Sheepsfoot The double-walled design keeps condensationBlade Length: 3. 54"(90mm) Blade Thickness: 0. 15"(3. 8mm) Blade Finish: Satin Blade Grind: Flat Blade Material: S35VN Blade Hardness: HRC58 60 Blade Style: Drop Point Overall Length: 7. 87"(200mm) Closed Length: 4. 33"(110mm) Handle Material: Titanium Clip Material: Titanium Pivot Assembly: Ceramic Ball Bearing Weight: 5. 46oz 155g Lock Type: Frame Lock