Vesper is a blend of 30-35 year old Grande Champagne cognacs. It is blended to create a classic style, very full, mature and notably refined, feminine cognac. Vesper has a full bodied roundness matched by a remarkable finish on the palate.

Delamain does not grow grapes, but purchases young eaux-de-vie from trusted grower/distillers who offer their finest spirits for evaluation after each harvest. The selected spirits are aged separately in 350-liter oak barrels called roux rather than new oak, which would lend too much tannin. After 30 to 35 years of aging, the Cognac is blended, then allowed to age 2 years further to marry the flavors and textures of its components. Lastly, prior to bottling, Delamain will use older lower-proof cognac to bring down the alcohol content to consumption level, rather than adding distilled water which would compromise the rich flavor.