The verdict
Across 44 authentic reviews, the Salomon Outdoor X Ultra 4 Speed / Aero earns a 7.8/10 — positive sentiment, with reviewers focused on Fit and sizing, Traction on wet terrain, Quicklace system.
If you have more narrow feet, the Salomons are the way to go. European style fit and very durable/comfortable.
I have a narrow foot and heel retention is always a major challenge... So far the heel retention is very good with the X Ultra 4.
I find their soles are too slippery for UK and Ireland trekking and running... Contagrip just doesn't work well on wet rock.
Reviewers highlight: Excellent heel retention; Great for narrow feet; Convenient quicklace system; Lightweight agile construction.
Common criticisms include: Slippery Contagrip wet surfaces; Inconsistent fit across line; Questionable long-term durability.
Based on 44 authentic reviews across Reddit, YouTube, and social media, the Salomon Outdoor X Ultra 4 Speed / Aero scores 7.8/10 (positive sentiment).