[header] How to shave chest hair [title] Trim your chest hair outside of the shower. [step] You wouldn't take a cartridge razor to your beard before trimming it down, and the same can be said for shaving any body hair. Start with a trimmer on the shortest setting to give you better visibility and necessitate fewer strokes when you go for the razor. 
[substeps] Make sure you trim with completely dry skin and hair. Wet hair will stick to your chest making it harder to trim, and it can also stick to the trimmer.