Hello, my name is Spitzkopf or Prøxed and I welcome you to my Lee Sin Jungle Guide. I hope you like my Guide and it will help you to get better. If you like my build, please vote. If you got some Feedback, how I can improve my Guide, just comment. I want to apologize for my bad english. And in addition I'm not very good in BBcoding. I try to add some BB-Codes later :)

http://www.mobafire.com/images/rune/greater-mark-of-attack-damage.png
http://www.mobafire.com/images/rune/greater-seal-of-armor.png
http://www.mobafire.com/images/rune/greater-glyph-of-scaling-magic-resist.png
http://www.mobafire.com/images/rune/greater-quintessence-of-movement-speed.png

I take 9/21/0 Masteries for more tankyness.
Offense Tree: I put 4 points on Sorcery for some Cooldownreduction. In my opinion it's important on Lee Sin. I put my other 5 Points in Offense on Deadliness and Weapon Expertise for some more damage.
Defense Tree: I just get everything which makes me more tanky to use my other 21 Points.
Utility Tree: I get nothing in it.

The Game starts and I buy Hunter's Machete and 5x Health Potion.
After some hopefully succesfull ganks and hopefully some kills, I recall and buy Wriggle's Lantern, Boots and The Brutalizer. I recall again and buy Phage and choose between Ninja Tabi, Mercury's Treads and Mobility Boots. As a Core Item I buy Black Cleaver and rush Frozen Mallet and Last Whisper. In the Late Game, I buy Bloodthirster, Guardian Angel and sell my Wriggle's Lantern for Runic Bulwark.

I start with Tempest / Cripple. I max it first, too. As second I max Safeguard / Iron Will.
I max Sonic Wave / Resonating Strike as last. In my opinion it's just a skill to jump to Enemys. I only max Sonic Wave / Resonating Strike at first when I play Lee Sin in the Middle-Lane or on Top-Lane against an ranged opponent like Jayce or Teemo.

Flash: A good Spell to save your Life.
Exhaust: I think it's the best spell on Lee Sin in the Jungle. It slows the enemy in a gank to pick up the kill or just to reduce the attack speed and Damage of the Enemy Ad-Carry.
Smite: Pick it. You're jungling.
Ignite: It's a good Spell to pick up Kills, where you think that you're not able to get them with skills and autoattacks.

I start with Hunter's Machete, 5x Health Potion, skill
Tempest / Cripple and heap up to the Wraiths. I ask the Mid-Laner to help me at the Wraiths and to help at the Red-Buff. After I reach level 2, I skill Sonic Wave / Resonating Strike and gank the Mid-Lane. In the Most time it's an Sucessfull Gank. I gank, recall, gank, gank, ...
For some difficult Ganks, I use the Sonic Wave / Resonating Strike -> Sight Ward behind the Enemy -> Safeguard / Iron Will on the Sight Ward -> Dragon's Rage the enemy to my allied.
In the Teamfight, I try to take out the Opponent Ad-Carry with this move.