I highly recommend this product, especially if you do a lot of walking like me. I've been using this product for as long as I can remember and it has never let me down. I'm using these insoles in all my walking boots. Why? Because they are thick, comfortable, durable,give the feet excellent cushioning and will not crumble after a few weeks like some of the cheaper brands. Oh! Just a piece of advice a couple of drops of an essential oil every week will keep your boots smelling nice and fresh. I use Lemon Balm. It's en excellent mosquito repellent. If you want a midge repellent you can use Bog Myrtle _ careful with this one! It's poisonous, so get advice from a health shop before you use it!