I am struggling to find the right footwear for a nearing EBC trek in Nepal. I’m walking the typical route from Lukla (i.e. no peaks), and intend to do the return trek in 13-15 days. I would like to wear boots but the ones I have are giving me knee pain. I’ve never had any knee issues in the past, nor have I had any other joint or muscle problems from any sport.
I have hiked previously in trail runners, most recently in Salomon XA Comp 6. I’ve worn them on 4-5 day summer hikes (in NZ and Australia), carrying about 10kg, and also used them for Oxfam Trailwalker (100km in 30 hours) a couple of months ago. They are very comfortable – but probably not suitable for a colder climate and do not provide much support. They are also nearing the end of their life.
My original plan was to wear shoes in Nepal and I purchased a pair of Salomon XA PRO 3D ULTRA 2 GTX – for the goretex and for the support. They were a disaster – too narrow at the front (made my feet numb) and too stiff and high at the back (gave me blisters).
I then went down the boots path and bought some Scarpa Terra Gtx boots (lightweight and mid height). I got a size up from what I would usually get – my usual size was too tight with thick socks. But I instantly feel pain in my knees when I start walking in them – and instantly feel relief when I change to shoes. I have worn them around the streets a few times (for an hour or two at a time), and also used them on a day hike in the bush (about 6-7 hours). I saw a podiatrist who put extra padding in the in-soles for arch support, which made a slight difference but did not eliminate the problem. When I do them up tighter there is slight relief on my knees but my feet and ankles are not comfortable. I’ve also noticed my knees feel the worst when I’m walking on the flat.
My questions are as follows: Is it usual to feel knee pain when wearing boots for the first time and do my legs/feet just need to get used to it? Could it be the larger size that is the root of the problem? Given my situation, are shoes a better option for this trek?
I’m really stuck on this one. I will probably see another podiatrist but it would be good to hear opinions from people that know about trekking specifically. Thanks in advance for any advice you can offer.

