Heavy bag....

[Dragonzbane76]

HEAVY BAG,

DISCUSS...........
http://www.google.com/url?source=imgres&ct=img&q=http://www.pacillo.com/products/ringside_leather_bag_70_lhb_b.jpg&sa=X&ei=w_JGTICHOcOclgeUhZntAw&ved=0CAQQ8wc4CA&usg=AFQjCNFjiLk0ROMF3AN-S72JnlxHnuM-bA

[taai gihk yahn]

that's heavy, bro...

[KC Elbows]

I'd hit that.

[Iron_Eagle_76]

Buy Title bags, they are cheaper than Ringside and just as good.

[sanjuro_ronin]

People need 2 types of bags:
One for hitting and developing speed, endurance and follow-through and for that almost any bag will do if it is not TOO light OR TOO heavy, rule of thumb is that if you are under 200lbs a 100-70lb is fine
If you are over 200lbs a 100-150lb is fine, although you don't really need one over 100.
And you need 1 bag for "conditioning" if you are gonna do bareknuckle work.
A bag that is very dense but with give, a sand bag would be ideal, if you can still fond one around.
Doesn't need to be a long one either or those 200lbs ones, just a more denser body than the typical HB.

[Iron_Eagle_76]

Personally I like Muay Thai bags. This is a great bag one of the gyms I train at has:

http://www.titlemma.com/sf_39/c_6/p_CTHB+100.aspx

For 89.99, it's a steal.

Also at my regular gym where I do my strength training they have this bag:

http://www.titlemma.com/sf_39/pg_2/c_6/p_HBL+50.aspx

The 150 lb version is great. As I said, I love Title products because they are very affordable and high quality, but there are a lot of brands to choose from.