CS2 Skin Glossary
Last updated: 6 August 2026
1. Float Value
The number between 0.00 and 1.00 baked into every skin that determines how worn it looks — lower means cleaner.
Read full definition →2. StatTrak
An orange-text skin variant with a built-in kill counter, tracked separately from the regular (non-StatTrak) version of the same skin.
Read full definition →3. Souvenir
A gold-text skin awarded from Souvenir Packages during Major broadcasts, commemorating a specific match rather than being case-dropped.
Read full definition →4. Wear / Exterior
The five condition tiers — Factory New, Minimal Wear, Field-Tested, Well-Worn, Battle-Scarred — a skin is bucketed into based on its float value.
Read full definition →5. Pattern Index (Paint Seed)
A fixed number baked into each skin drop that decides exactly where its pattern falls — the same number Valve's files call the "paint seed".
Read full definition →6. Doppler Phases
The distinct color variants — Phase 1–4, Ruby, Sapphire, Black Pearl, and Emerald — that the Doppler finish produces depending on pattern index.
Read full definition →7. Fade %
How much of a Fade-finish weapon is covered by its color gradient, calculated from pattern index — higher percentages sell for more.
Read full definition →8. Trade Lock (Trade Hold)
Steam's mandatory waiting period — normally 7 days, longer after a recent security change — before a newly received item can be traded again.
Read full definition →9. Blue Gem (Case Hardened)
Community slang for Case Hardened weapons whose pattern index lands on an unusually high, sought-after share of blue coloring.
Read full definition →10. Case
A container that drops one random skin from its fixed pool when opened with a key, weighted so rarer skins are far less likely.
Read full definition →11. Collection
A themed set of skins tied to one game update or operation — obtainable from a matching case, or sometimes as a rare drop after a match.
Read full definition →12. Vanilla
A weapon or knife with no finish applied at all — the plain, default-look item, still fully tradeable and sometimes valuable on knives.
Read full definition →