The 21-year-old is pleased with his place in the squad and believes the Azzurri have a strong chance of triumphing at the tournament
The forward has enjoyed a fine season for Napoli in Serie A, scoring five times in 37 appearances and setting up a further seven goals for his team-mates on their way to a second-place finish.
And the 22-year-old stated his happiness at continuing his international development at Under-21 level.
“I’m happy to be here,” he told reporters.
“I’ve always said that the Confederations Cup is great competition, but for my growth, I would prefer to play in the European Under-21 Championship.”
Insigne scored in Italy's 5-0 win over an AS Varese youth team as they completed their warm-up preparations ahead of facing England in their opener on Wednesday and he is confident the Azzurri are in rude health.
“We came here to get to the final," he said.
“Marco (Verratti) and Mattia (Destro) will provide us with an important contribution, they are two key players who have experience with the senior team.
“To win the European Championship, however, you need not only one player, but a whole team.”
The forward left training yesterday after suffering a minor knee injury, but it does not appear likely to keep him out of the tournament.
He added: “I’m a bit better today, I will try some training too, the final choice on if I play will be up to the coach.
“This morning I underwent some physio and some work in the water. We’ll see how it goes over the next few days.”