Available for Lots of Shoes: these absorbing insoles are suitable for most kinds of shoes, such as walking boots, hiking shoes, climbing shoes, sports shoes, leather shoes, casual shoes, flats, and so on, meeting your different needs in daily life. Sufficient for Replacement: there are 4 pairs of shoe inserts, which are sufficient to meet your daily uses and replacement, so that you can replace another one when your shoes' insoles get dirty or missing. Trim to Fit Your Shoes: these replacement insoles are about 28.5 cm/ 11.22 inches long, which are suitable for most men's shoes, also available to be trimmed into different sizes randomly, providing you with much convenience. Anti Shock and Non Slip Design: these memory insoles are mainly made of EVA foam materials, and the outer layer are made of cotton materials, which are breathable and sweaty, the bottom side of the replacement shoe sole adopts a honeycomb design, which can help to reduce shock and anti skid, so that you can enjoy playing tennis outdoors with your friends or family. Tips: the insole material is light and thin, mainly applied to replace the original thick sports insoles, suitable for summer use to keep the soles of the feet cool and breathable.