Card sleeves for Sinister Six
2 packs of Sleeve Kings Standard USA Card Sleeves (56x87mm) - 110 Pack, SKS-8807£ 2.50
2 packs of Sleeve Kings "Tiny Epic Compatible" Sleeves (88x125mm) - 110 Pack, -SKS-8818£ 3.00

enough Sleeve King card sleeves to cover Sinister Six cards for £ 11.00
Price quoted is before any bulk discount and without P&P.

Premium Sleeves for Sinister Six
3 packs of Premium Std USA (Like Bang!, Munchkin) £ 2.25

4 packs of Premium Custom Tiny Epic Kingdoms £ 2.95

enough Premium card sleeves to cover Sinister Six cards for £ 18.55
Price quoted is before any bulk discount and without P&P.

Standard sleeves for Sinister Six
2 packs of Std USA (Like Bang!, Munchkin)£ 2.25
2 packs of Custom Tiny Epic Kingdoms£ 2.95

enough standard card sleeves to cover Sinister Six cards for £ 10.40
Price quoted is before any bulk discount and without P&P.

This information is based on information provided by Mayday Games and Sleeve Kings. we would always recommend measuring your cards to double check this informaiton as different versions of games sometimes have different size cards