This is my third pair of Harlicks. Customs first, then semi-custom stock boots the last two pairs. All High Testers (or their equivalent in the customs). Generally, they last me 2.5-3.5 years. This pair I've had on the higher end of that and they are trashed (I'm duct taping them for support). But Harlick also does a great job of rebuilding boots, so you don't always have to buy new every time you need them. I have gotten new each time for various reasons (weight loss, change in options, etc) but you don't necessarily have to.