Our thermal are ideal for those who enjoy outdoor activities in cold weather. The aluminum foil layer provides excellent insulation, keeping your feet even in the harshest conditions. The felt material adds an extra layer of comfort and cushioning, making these ideal for long hikes, mountain climbing, or casual walks in the winter. Features Suitable shoes sizes: Ladies: UK 3-8, EU 36-42 ; men UK 7-11, EU 41-46 -Color:Silver -Material:Aluminum foil, nonwoven, mesh foam -Size:30.20X9.50X0.70cm/11.87X3.73X0.28in - : the felt material allows excellent breathability, keeping your feet fresh and dry even during extended wear -Versatile dualsided: use the aluminum foil side for warmth in cold weather and the felt side for breathability in warmer conditions -Enhanced shock absorption: the sports feature shockabsorbing materials that reduce foot strain, making them ideal for both casual and athletic activities -Complete foot support: designed to cover the entire sole, these boot liners provide full supporting and reduce overall foot fatigue -Firm construction: made of felt and aluminum foil, these shoe inserts are built to last, providing comfort and supporting Package list: 1 x pair of shoe