Does anyone know where to buy a chest protector for pitching that is not big and bulky. I sure there're out ther has anyone used one that they like?
There are many online of different sizes and specifically for the heart.
Might consider putting a large phone book in a bag and strap in around you... only kidding.
I would go with an umpire chest protector that has removable parts.
http://www.ump-attire.com/Merchant2/merchant.mv?Screen=PROD&Product_Code=CP23&Category_Code=CHEST-PROTECTOR&Product_Count=6
Champro Pro-Plus Plate Armor Umpire Chest Protector (#CP23)
There is one cheaper, but you can't remove the shoulder pads.
Never purchase anything from Champ-Pro. They should change the name to Cheap-Pro, because that applies to most of their products.
Keep looking, and see if you can find a heart guard, not a chest protector.
Evoshield makes a heart guard chest and back protector about $90.00. Hope this helps!