That’s an interesting question. On the one hand, an in-built Gore-Tex “bootie” enhances waterproofness, ensuring your feet stay drier. Additionally, the boot will also dry out more quickly because its inner lining may be less wet after a damp day on the trail. On the other hand, the bootie adds $15 to $25 to the cost of the boot, inhibits breathability, and makes the boot warmer, which may be an issue on warm days.
So, I’m somewhat conflicted on the topic. I generally prefer a well-made boot that uses one-piece leather construction, a design that’s inherently water resistant, especially when the boot is well cared for and treated with a waterproofing agent like Nikwax. Better still is a boot with a true leather lining, something that’s rare these days. Granted, this isn’t to do with waterproofing but the boot’s fit聴a leather lining molds itself to the wearer’s foot for a custom fit. Most boots today use Cambrelle, a fabric that works very well because it’s comfortable right out of the box. The Baffin ($230; www.lowaboots.com), though, employs leather lining.
Having said that, I think that in areas where wet weather and minor stream crossings are a given, the Gore-Tex lining probably makes some sense. And some fine boots use it at a reasonable price聴L.L. Bean’s Cresta Leather Hikers, which have a Gore-Tex bootie, sell for the eminently reasonable price of $169.