Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: @sportinglifecan I keep a down vest or sweater in my pack year round! Helps on chilly mornings or breezy mountain tops! #mysportinglife
This tweet contains emotions: 
joy, optimism