This is my preferred Lee Sin jungle guide. I use this one because i get the best of both world while doing Tons of Damage.

Fore runes I use flat attack damage and some armor pen. Then I just use the basic armor and MR seals and glyphs. I use Ad quints for the extra damage that this beast can deal.

I use 18/12/0 Masteries because I want the ad from the offensive but get the health and returned damage to take out the creeps in jungle faster.

Now for items I find it best when I start Cloth Armor just because it gives me the defense to be able to take the jungle out and gank ASAP. I then start to build my boots and the Lantern for mobility and the ward to jump to in sticky situations. I buy phage for my gap closer and hexdrinker for the help against AP. Then this comes to the point where you either buy the frozen mallet which gives you health or you buy the Maw which gives you the resistance to the AP. If the team is heavy AP you should buy the Maw if not just go frozen mallet then Maw. Then I finish my build off with a Atma's and Guardian Angel. Atma's for the extra ownage and Guardian Angel for the reassurance i'll come back to life and own some more.

Pros:
- Great mobility
- Powerful Early level ganks
- Good Escape
- Deals tons of damage
Cons:
- Needs a team to work with
- Doesn't like feeders
- Ult if not landed right can make you lose the kill