I bought a pair and thought I had better try them out before I started the Camino. As I came downhill after walking on the nearby mountain, I felt the pressure start to build on the nail of a big toe. By then it was too late; another toe nail turned black and on the way out. Although I tend to lose the odd nail on long walks, this was just a day walk. I think my toes must be different lengths to those allowed for in the toe socks resulting in the pressure which would normally be spread across all toes being concentrated on one.
Probably just a problem peculiar to me but I thought it worth a mention.
Ah, the Toenail Blister. (Yuck. Been There Done That.)
I walked without even knowing about toe socks in 2014--in boots that were probably 1/2 size too small--got the Black Toe on the very 2nd day. Also had huge, painful blisters on the heels, the toes, the soles. Survived, but it was painful. (Didn't know the things mentioned at
https://www.blisterprevention.com.au/blister-blog/toenail-blisters.) These many months later, I recognize that the boots were too small, and also water got into them and when going downhill the feet slammed into the front of the boot. Didn't know about tying heel-lock patterns into shoelaces yet, either.
In 2015, had Injinji liner socks plus regular type sox (still same shoes, hadn't learned that lesson yet) and ended up using the liner socks only. It was very comfortable. Very few blisters, those that came were because it was such a hot year. Knew about heel-locks and they were a huge help. (Treated the few blisters with alcohol (hand sanitizer is just jellied alcohol), gauze, and adhesive tape. Except for the adhesive melting thru the tape and getting on the socks, this worked very well.)
In the few days we got this year, had the Injinji hiking socks (supposed to be lightweight I think, but memory fades on some things) and discovered that wearing these socks made my feet wider in the toes. Got toenail blisters--only one of them black--on three toes. (Had laced the boots too tight. Oops.) Figured out the hard way that I needed to relace my boots for more toe room--now at home, have gone to a lacing that skips about every other crossing opportunity, plus the heel lock. Time will tell if this is a great way or not.
I don't think it's likely that the toe pockets are the wrong size for one toe, but it is likely that you need to adjust your boot lacing for the width of the fabric increasing the width of your toes. (And spend the time to wiggle that little pocket all the way onto each toe, one by one.
)
Buen camino.
