Should I buy the X Ultra 5 Gore-Tex or non-Gore-Tex?
Buy non-Gore-Tex for summer day hikes and Mid GTX for cool or wet multi-day trips — the GTX membrane runs hot in warm weather and slows drying once water gets in over the collar. A direct r/hiking summer-hiking thread asked exactly this question for the X Ultra 5 and the consensus picks non-GTX for breathability when ambient temperatures are above ~70F Salomon X Ultra 5: Gore-Tex or non-Gore-Tex for summer hiking?. If you primarily hike in cool, wet shoulder-season conditions, choose the Mid GTX and accept the warmer summer trade.

