Jicama is a root vegetable with a mild, refreshing flavor and a light, crisp texture that shreds nicely. To peel the jicama, use a paring knife to cut into chunks and peel each piece, as the skin can be difficult to remove with a standard vegetable peeler. For this salad, choose a firm, slightly underripe mango, as a ripe one will be too soft to shred. This is a terrific side to grilled or pan-seared seafood of just about any sort or even barbecued pork, chicken or beef.