Memory Foam Shoe Insoles - Cuttable - One Size Fits AllMemory Foam Shoe Insoles Molds to your foot, breathable, keep memory, comfortable Suitable for leather shoe insoles and sports shoe How To Use: STEP 1: Your shoes current insoles are probably removable take them out first. STEP 2: Place insoles into the shoe to test for size. STEP 3: If needed, trim along the outline (on the bottom of the insole near the toes) that matches your shoe size. STEP 4: Insert insole into shoe starting from the heel with gel