Why and How to Double Sleeve Your Cards: Protect Your TCG Collection with the Best Sleeves Are there reliable sleeves for double sided cards like this? What I'm using here doesn't fit in my deck boxes : r magicTCG I'm told Penny sleeves aren't very good for protecting decks, and I should be double sleeving. How does this look? : r magicTCG Thick Inner Sleeves Need THICKEST Deck Boxes Double Sleeved Magic The Gathering, Pokemon Cards