Using ODRFRESH, these Dunlop Gel Insoles give you longer-lasting freshness and lightweight and slim design, while the Gel arch and impact zones offers greater comfort and support Insole. ODRFRESH. Lightweight and slim design. Gel impact zone. Gel arch support. Imported. . NOTE: This product is sold in U.S. sizes. While the physical product may display both the U.S. & U.K. sizes on it, please place your order using the U.S. size.