- Kidney and Foul Protection Cup: Designed with the finest craftsmanship and highest quality material, handmade in Mexico. Manufactured under a strict of the very best kind control in leather and all the materials. Made with long-lasting leather and latex foam padding which offers great comfort and protection while fighting. Guaranteed high quality article. Kidney and Foul Protection Cup provides grip, hip and kidney protection with a wider design and excellent mobility. Fits above boxing trunks without having a problem and with no extra bulk. It always gives a full coverage with an elastic leg strap for you to be able to feel comfortable and free of movement. Kidney and Foul Protection Cup can be adjusted with a rear hook and loop closure for a better and secure fitting. Ideal for training purposes.