Tailored Outfit Pieces
Items Prices and Weights according to D&D Arms And Equipment Guide, Page 29, Table 2-2: Clothing.

Item				Cost	Weight	Alterations
Fine Belt			25Gp	----
Smuggler's Boots	10Gp	1lb
Silk Pants			8Gp		----	+2Gp 2 Tiny Inside Pockets
Full Cape			1Gp		3lbs
Leather Jacket		1Gp		3lbs	+2Gp 2 Tiny Inside Pockets
Velvet Vest			2Gp		1lb		+2Gp 2 Tiny Inside Pockets
Leather Gloves		5Sp		----
Cotton Hood			5Cp		----
Knee Pads			3Sp		.5lb
Elbow Pads			3Sp		.5lb
Shin Guards			4Sp		.5lb

Inside Pocket Definition according to D&D Complete Scoundrel, page 108.
This hidden space is simply an extra pocket sewn into the inner lining of a coat, tunic, robe, or pair of trousers. An inside pocket generally only holds a few sheets of paper, parchment, or similar items, but some are made to hold a potion or a dagger. A single piece of clothing can have up to two inside pockets. A character with ranks in Sleight of Hand can substitute her Sleight of Hand check result for the normal Search DC when concealing objects in an inside pocket. She gains a +5 circumstance bonus on such checks. The maximum size of the space contained within an inside pocket is two sizes smaller than the article of clothing it is built into. For example, a robe made for a human (size Medium) can have an inside pocket no larger than Tiny. Price: 1 gp

Pocket Sizes according to D&D Complete Scoundrel, Page 109, Table 5-1: Hidden Spaces.
Size		SearchDC	Aprox Volume	Content Samples
Fine		25			2x2x2in			10 coins, Sheet of Paper, Shuriken
Diminutive	20			6x6x6in			Potion, Amulet
Tiny		15			1x1x1ft			Book, Flask of Acid, Light Weapon