Fosmon DURA FROST Series SLIM-Fit TPU Case for Samsung Galaxy S4 / I9500 (Blue) Compatibility: 2013 Samsung Galaxy S IV S4 SIV / GT-I9500 - All Carriers. SLIM-Fit design lets your showcase your new Galaxy S IV by keeping it slim and sleek. Frosted finish gives your Galaxy S4 a smooth and comfortable feel. Made with durable and flexible thermoplastic polyurethane (TPU) Gives your phone amazing protection for a price that can't be beat!