Softwalk Whistle Casual Platform Shoe. Whistle while you walk the streets on your next trip in this stylish lightweight platform slip on. Supple leathers in beautiful colors are lined with soft microfiber and dual side elastic goring provide a comfortable fit. Whistle also has a soft lined footbed with great arch support that is removable for people who prefer to use orthotics. The rubber outsole provides extra cushion and grip.