Johnnie Walker Double Black is a full-bodied, smoky blended Scotch whisky. It's a variation of Johnnie Walker Black Label, but with more Islay whisky and a greater emphasis on smoke. 
Description: 
Color: Deep golden with darker depths
Aroma: Sweet smoke and spicy cloves
Palate: Peat smoke, dried fruits, orange zest, and creamy vanilla
Finish: Lingering smokiness from oak-aged casks
Alcohol content: 40% ABV
Tasting notes:
Light but oily nose with dry oak, honey, and stony smoke 
Fuller bodied palate with sweet smoke, floral honey, cracked stone, tar, and old bonfires 
Some say it has a "chewier" mouthfeel