The Aegis Max 2 (Max100) kit from Geekvape is a safe bet for demanding vapers. This IP68-certified robust monster is resistant to water, dust, and shocks. Its great strength is its versatility: it works with a 21700 battery (for maximum autonomy) or 18650. Combined with the legendary Z Sub-Ohm Tank and its Z Series coils, it delivers up to 100W of power for an intense and flavorful DL vape.