Why buy our products1,iFitna Orthotics or Inserts are designed to support your longitudinal arch and provide the alignment needed to reduce over-pronation. They also help relieve foot injuries caused by repetitive stress by absorbing shock, providing cushioning, and transferring pressure away from high impact areas. 2,Designed and manufactured according to ergonomic principles, fully fitting the pressure distribution on the foot 3,High polymer EVA provides good cushioning and elasticity for reducing shock and reduce knee fatigue and leg pain. 4,Skin-friendly anti-slip fabric and high density EVA FOAM feels delicate,soft and breathable.Make your feet comfortable and cool all day. 5,U-heel design. Provide feet stability. Keep feet bone vertical and balance.Reduce the friction between the feet and shoes. ARNING: you may feel FOOT PRESSURE while 3-7 days of wearing. IT'S NORMAL cause your feet are NOT USED to arch support. Prompt: 1.It is recommended that each pair of insoles be used for no more than 2 months 2.Wash your hands with clean water or dry in a ventilated place, do not machine wash 3.Buy multiple pairs at a time, alternative use INDICATIONS Orthotic Inserts for Common Foot Pain, Fiat Feet, Arch Pain, Heel Pain, Ankle Pain, Plantar Fasciitis, Over Pronation.Designed for daily use: very suitable for walking, running, sports, hiking, etc., also for people who stand for a long time. It can provide moderate control and support for walking or leisure hiking shoes, work shoes and boots. The comfort of various casual or everyday footwear, such as casual shoes, work boots or shoes, sports shoes, and even hiking shoes. Unique EVA perforation and ventilation: Memory cotton interlayer can quickly absorb sweat and keep your feet dry. The holes in the insert keep your feet breathable and fresh. Breathable and cool coating material helps reduce heat and friction during intense exercise, keeping it cool and dry. Three-layer structure design: the gentle arch support design is suitable for most people. It can help walkers and runners with foot fatigue to find proper cushioning support. Material: Multifunctional EVA (memory cotton), strong structure increases the comfort, support and sense of structure of shoes. Adjustable size: The insole can be easily trimmed and cut, so that you can adjust it according to the shape and size of the footwear. You can crop according to the size of your feet. Therefore, don't worry that our products are not suitable for your feet.