The Woodsmaster ranger has many abilities to blend into natural environments and disappear into the shadows of tree canopies and similar environments

Woodstride

Your ability to navigate and blend into forests allows you to cast Tree Stride twice per short rest, without any other restrictions other than the restrictions provided in the spell description 

Lurker

At level 7 you have honed the art of hiding in the shadows like certain animals to the point where dim light gives you the benefits of darkness

Oakskin

At level 11 you have learned the secrets and magic of the forest and your skin becomes woody, this causes your armor class to increase by 2, and the woody substance on your skin that re-forms when you take a short rest gives you 2 extra, non-regenerating temporary hit points that are re-gained every short rest

Essence of the dark woods

At level 15 you have mastered hunting in the shadows, and in dim light your AC goes up by 2 and you can cast tree stride for free once more after you would otherwise run out, this extra use is exclusive to dim light