These boots are sold in U.S. men’s sizes. We’ve tried on a selection of sizes and think this boot runs true to a US shoe size. The width is generous, we think D or E. These boots have a pronounced arch support which I really like and find to be very comfortable, but if you can’t tolerate a significantly contoured insole, then you might not get along with this one too well.

Klim Transition GTX Boot
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The redesigned Transition GTX Boot is the ultimate footwear to get you to and from the ride, with the durability to last through everyday use. Waterproof protection and comfortable support will tame snowy trailheads, spring runoff creeks, parking lot puddles and everything in between.
- GORE-TEX
- GUARANTEED TO KEEP YOU DRY™
- MID-HEIGHT OVER-ANKLE BOOT
- LEATHER MAIN UPPER MATERIAL
- BOA® FIT SYSTEM FOR FAST PRECISION FIT
- OPEN LACING SYSTEM SHEDS ICE AND DEBRIS
- RUGGED OUTSOLE
- DURABLE MIDSOLE WITH WALKING COMFORT
- BREATHABLE, MOISTURE-WICKING REMOVABLE INSOLE
- NESTFIT® ANATOMICALLY OPTIMIZED FOOTBED TECHNOLOGY
- HALF-SIZE INSERT FOR OPTIMAL FIT
- REINFORCED SCRATCH RUBBER TOE
- ENTRY ASSIST PULL TAB