+ Having passed the 1000km milestone in my Primus Trail Soft Grounds, I feel well placed to say they're a resilient trail shoe. Unlike most running trainers, reaching this kind of mileage doesn't mean the end for a barefoot shoe. Sure, the lugs have worn down so much that they're far less effective through the mud, but that is mainly down to the fact I have worn them year-round. The way I see it, they have taken on a second life as a 'firm ground' version of the Primus Trail.

- I bought these shoes on REVIVO, in next to brand new condition. Immediately I noticed they were quite tight around the ankle. I do prefer greater freedom for ankle mobility and other online reviews confirm I am not the only person to have found this. In fact, one reviewer even cut away material to create a looser fit. I wouldn't go that far, as they will loosen up the more you wear them. Plus, VIVOBAREFOOT are very good with returns, so best to take that option if they aren't for you.