MEGACOMFORT'S MULTITHOTIC™ 3-IN-1 ORTHOTIC INSOLE IS ERGONOMICALLY DESIGNED BY A PODIATRIST USING A PATENTED COMBINATION OF HIGH-DENSITY DUAL LAYER 100% MEMORY FOAM PLUS TWO RE-ATTACHABLE ORTHOTIC ARCH SUPPORTS (MEDICAL GRADE MATERIALS). THE LIGHT GREEN FLEXIBLE ARCH SUPPORT IS RECOMMENDED FOR MEDIUM/REGULAR ARCH TYPE AND THE DARK GREEN RIGID ARCH SUPPORT IS RECOMMENDED FOR LOW ARCH/PRONATION SUPPORT. BASED ON FOOT TYPE FOOTWEAR AND ACTIVITY LEVEL MULTITHOTIC™ PROVIDES ADAPTABLE COMFORT AND SHOCK ABSORPTION WHILE SIMULTANEOUSLY ALLOWING ONE TO VARY THE DEGREE OF HEEL ARCH SUPPORT AND MOTION CONTROL. MADE WITH MEDICAL GRADE POLYPLASTIC THE MULTITHOTIC™ IS A COST-EFFECTIVE INITIAL REPLACEMENT TO CUSTOM MADE ORTHOTICS. IDEAL FOR STATIONARY MOBILE AND THOSE WHO WORK OUTDOORS. FOR USE WITH INDUSTRIAL SAFETY AND STEEL-TOE FOOTWEAR CASUAL AND WORK FOOTWEAR. FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" TWO PAIRS OF INTERCHANGEABLE MEDICAL GRADE RE-ATTACHABLE ORTHOTIC ARCH SUPPORTS ERGONOMICALLY DESIGNED BY A DOCTOR SILVER ION ANTI-MICROBIAL TECHNOLOGY IN TOP CLOTH ANTI-BACTERIAL ANTI-PERSPIRATION AND ANTI-ODOR TEMPERATURE REGULATING AERATION HOLES MACHINE WASHABLE