Manta Trifold Wallet Cotton/Velcro Assortment Manta Rainbow Colors. Manta blankets are traditionally used by the native women of the Andes to carry babies and harvests strapped to their backs. Here, we use scraps of woven cotton fabric to create accessory items like this tri-fold wallet. Includes an assortment of pockets on the inside. Specifics: Assorted colors 4.75"x 4" Volume Discounts Available 6+.