Please kindly noted that this item is sold by kanghaoxin from Joybuy marketplace. Free Size. Fits any Adult shoe. Material: Silicone Quantity: 2 pcs (1 pair) Insoles color:Blue The fantastic pads relieve your foot pain when walking and standing Size 1 for men (US 7.5-11.5 EU 40-44 ,UK 7-11): 11.3cm (length) x 7cm (width)  x1.3cm Size 2  for women (US 6-9 EU 36-40 UK size 4-7): 10.7cm (length) x 5.8cm (width) x1.2cm CUSHIONED HEEL PAIN RELIEF: Premium heel cup cushions and supports the heel and ankle to reduce pain and fatigue. Relieving foot pain caused by heel spurs, bone spurs, and plantar fasciitis, the gel heel cups are shock absorbing, reducing stress with each step. Providing comfort throughout the day, the heel cups are perfect for those on their feet all day and for athletes FITS IN ANY SHOE: Create a customized fit by easily trimming the heel cushions to use with your favorite shoes. Can be worn in most shoe styles, including athletic shoes, dress shoes and boots CORRECTS FOOT POSTURE: Elevating the heel to the proper position, the heel cups correct foot posture and gait. Reduces pain from high or low arches by supporting heel while walking or running and absorbing the shock and evenly distributing the pressure created with each step. Reduces foot strain and provides additional support for ankle muscles to further alleviate fatigue ODOR-FREE: Inserts eliminate odors from build-up for extended wearability. The inserts are easily washed by hand with a mild detergent when necessary.