Trim-to-fit footbeds align and control the motion of your feet, providing balance, support and shock absorption for hiking, biking and other pursuits FEATURES: *Brushed polyester tops wick moisture to keep feet dry and comfort mile after mile *Full-length, high-density closed-cell foam cushions while 3/4-length polypropylene heel caps stabilize feet inside your boots, cleats or dress shoes *Deep heel pockets, rockered bottoms and soft edges allow for natural softness and shock-absorption * Thin profile takes up little volume, so is ideal for close-fitting shoes or wide feet--can be worn in shoes with removable or non-removable insolesQuestions and Answers ASK A QUESTION Got questions about this product? Ask them here. Got questions about anything else? Please see our FAQQ: 'what are the letters equivilent to in actual sizes?'1 Answers | Answer QuestionQuestion by liz on 12/19/2010 - 11:44 amA: 'The great thing about the Superfeet product is that you can cut them to best fit your shoe. The letters actually refer to the width you require for your shoes. When in doubt, size up and then you can trim it so it fits your shoes perfectly!'Answer by Kendall (Peter Glenn Staff) on 1/29/2011 - 1:29 pmQ: 'I have fallen arches .Would these inserts help me .'1 Answers | Answer QuestionQuestion by tdterry1999 on 6/6/2013 - 8:28 pmA: 'They definitely would. Make sure you get the correct color for the type of footwear you plan to use them in. Watch the video provided for more information on which color you might need!'Answer by Sarah (Peter Glenn Staff) on 6/7/2013 - 9:01 amQ: 'I have a pair of Dalbello Boots with foot warmers. The footwarmer batteries are no longer working. I find the boots a bit tight at my toes. If I remo