Alegria Women's Duette ShoeSize Chart The Duette nursing shoe from Alegria features double elastic gores for easy on and off and is also very supportive to the structure of your foot and activity. The slip resistant outsole is a dual density construction that balances weight distribution, increases your support and offers you enhanced shock absorption and rebound. Sport your look in every way with the support you need and style you want with the Duette by Alegria! Features