Sandstorm skins are recognizable for their specific purple abstract patterns over a base sand color. The Sandstorm skin family currently has two skins in its collection. The skins were added into the game at different times, and as a result, can be obtained from different weapons cases. Both skins come in four exteriors, with both of them lacking the Factory New exterior.
Even with the addition of StatTrak, the price of these skins does not exceed a few dollars.
Check out other CS:GO skins families: