One-Hand Trekker Non-Serrated knives are large Swiss Army knives (4 3/8" / 111mm) from Victorinox, that are similar to the smaller Hiker.

This variation of the Trekker features a blade with a thumb release, so it can be opened with only one hand. However, unlike most Victorinox knives with the thumb release, the blade is non-serrated.

There are many other variations of this knife, with different combinations of features (see below).

Trekker-- no thumb release
One-Hand Trekker-- serrated blade
One-Hand Trekker Black Blade-- black serrated blade
One-Hand Trekker German Army-- olive shells with imprinted logo, serrated blade
One-Hand Trekker Camo-- camoflage pattern shells, serrated blade
One-Hand Trekker Camo Non-Serrated-- camoflage pattern shells

Centurion-- no wood saw, no thumb release
Forester-- corkscrew instead of phillips screwdriver, no thumb release