So if you will be using your leather slingback purse not as a supplemental book-carrier but as your main handbag, make sure that your valuables are stowed in an interior pocket or at the very bottom of your bag.
Turquoise leather handbags are available as clutches, hobos, shoulder bags, evening bags, -- from slingback purses to briefcases, you name the style, and there is probably a teal or turquoise version available.
Huggy: Similar to a classic Birkenstock, especially if you choose the caramel color option, the Huggy is an open-toed slingback with an adjustable buckle on the ankle strap and layered top straps.
Slingbacks: The slingback Lanvin style can be worn with a slightly lower heel and in a casual fabric, for daytime glamour, or selected with a sky-high heel in an upper material like satin.
Online leather outfitters such as AmeriLeather.com have a few slingback styles that come in a decent variety of colors including: burgundy, dark green, brown, black, navy and off-white.