Alessandra Ambrosio shows off her beach body in an orange bikini on the shores of St. Barts

Alessandra Ambrosio, 40, heats up beaches of St. Barts in polka-dot bikini

Alessandra Ambrosio shows off her incredible physique in a tiny orange bikini in St Barts

Alessandra Ambrosio models Alo sportswear by the beach: 'Summer breeze makes me feel fine'