Got these last week Amazon.com : Top Loader Card Sleeves 480 ct, 35 PT Premium 240 Top Loader and 240 Clear Soft Sleeves for Cards Thick Hard Plastic Card Sleeves, 3" x 4" Trading Cards Protector for Sports Cards, Trading Cards : Office Products they're pretty thick and good quality unlike some of the other ones I've bought.

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Stay the hell away from these though Amazon.com: 500 Pcs 3 x 4 Inch Clear Regular Baseball Card Sleeves Hard Plastic Card Protector Trading Card Sleeves Clear Protective Sleeves Holder for Sports Card Collectible Trading Card Game Card : Toys & Games