The rarity of a skin determines its chance of dropping out of a case and its price. The rarer a skin is, the harder it is to get it by opening cases and the higher its price on the market. Rarity also affects the possibility of upgrading through a trade up contract — rarer skins give you a chance to get even more valuable items. The higher the rarity, the more valuable and desirable the skin is among players!

To trade your items for ESL One Katowice 2015 Challengers (Holo/Foil), first select the one that suits your price, quality and appearance and add it to your cart. After that, add the skins from your inventory that you want to trade and click the “Trade” button. All that's left is to confirm the deal on Steam, and you'll get the skin you want! If you don't have items to trade, you can always top up your balance on the site with real money and buy any skin of your choice.

All CS:GO skins have been fully ported to CS2, but thanks to the updated Source 2 engine they look more detailed, brighter and realistic. Improved lighting, reflections and textures have made them even more spectacular, but the models themselves remain unchanged. All the skins you had in CS:GO are available in CS2.