Klim Enduro S4 Pant
These boots felt comfortable right out of the gate-no break-in required!
The SG-22s are expensive boots but worth the stretch if you can make it. Comfortable right out of the box just like everyone says. I went with Atomic Motos suggestion to focus on the EU size numbers rather than the US, and it turns out all my 10.5 US sneakers were labelled 44.5 EU. That is what I ordered, and it fits perfectly. I think the Gaerne size chart has a different mapping for 10.5 US, but I ignored that went directly to the EU sizing
Forma makes great boots! I love their Predator off-road/moto boots and have been using them for years. After trying the best boots from most of the top brands including Sidi Alpinestars and Gaerne, the Forma Predators were easily the best for me. There is one small catch: in shoes I wear a 10.5 US. My left foot is a true 10.375 and my right is a 10.25. Size 10.5 tennis shoes work great. In the Forma Predators, I found I like the 44 (10) better than the 45 (11). Therefore, in the Forma Adventure Low I ordered the 44. The fit is fine, with one small problem, when walking, the boot bends right at the edge of the plastic overlay (for the shifter on the left, and symmetry on the right). In a size 44, this is just behind where my foot naturally bends, causing some minor irritation when walking. Hopefully this will improve with time. I believe a 45 would not have this same problem on my feet, and wish I would’ve sized up, instead of down in this case. Ideally, Forma would make 1/2 sizes. :)
Many ADV Riders recently saw (and graciously weighed‑in on) a post on an ADV forum, seeking advice for the right boots for the leap from pavement‑focused touring to back‑country ADV riding. The deeper I dug, the murkier the boot‑swamp became—until several of them urged me to seek the counsel of "Brian at Atomic Moto". One phone call later, Brian had patiently mapped my “must‑haves” (real ankle protection, hike‑able sole, enough room for thick winter socks) to SIDI’s X‑Power Enduro. If you were one of the folks urging me toward Brian count me firmly in your camp now.
Need‑to‑know specs
Construction & materials: laminated Technomicro microfiber throughout—SIDI’s synthetic that’s lighter, more water‑resistant, and tougher to stretch than leather
Atomic-Moto
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Protection suite: dual‑axis mechanical ankle hinge with hard stops to curb hyper‑extension, rigid shock‑resistant heel cup, full‑wrap plastic toe box, and an inner heat shield with high‑grip texture
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Closure & fit: four replaceable cam‑lock buckles on memory‑retention straps; adjustable calf plate accommodates knee‑braces or burlier calves
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Sole: lugged “Davos” welted TA sole—stitched on like a stout hiking boot, great off‑bike traction and resolable by a cobbler
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Weight: published at ≈ 3.6 lb per boot in US 9 (expect a hair more in my EU 45)
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Sizing: I went with my normal EU 45 and the length/width feel bang‑on; SIDI lists the X‑Power as a “normal to slightly wide” last
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Out‑of‑the‑box feel
Sliding a foot in, I had that reassuring “mini‑exoskeleton” hug without hotspots. Even brand‑new the hinge lets the boot flex naturally when you crouch beside the bike, yet the lateral stiffness tells your ankles, “I’ve got you.” The cam‑locks are a joy—after one quick micro‑adjust I could snug the boot from wispy KLIM Coolmax liners all the way to my fattest winter Merinos + waterproof over‑socks with zero drama. Walkability? Think beefy backpacking boot: the welted lugged sole rolls better than most motocross‑derived footwear, and gravel parking lots suddenly feel less like marbles underfoot.
First ride notes
My maiden rip was a 50‑mile mixed surface shakedown. Predictably, the taller toe box meant bumping the shifter up two splines, but once done, upshifts were crisp. Feel on the pegs is muted compared to my street boots, yet precise enough to spot brake‑pedal bites. Standing on the pegs, the rigid mid‑foot eliminates that “arching‑over‑a‑railing” fatigue I used to get. And yes—my wife likes knowing that those articulated ankle braces are doing more than my old café‑style kicks ever could.
Early quibbles
Stiffness: they’re freer than a true MX boot but still clangy and board‑like for the first hour; expect a break‑in curve.
Synthetic upper: Technomicro’s advantages are clear, but if you love the smell of oiled leather, you’ll miss it—and the boots squeak a little in a quiet garage.
Weight: lighter than many hinged competitors, yet still a step up from ADV “sneaker‑boots.” Worth it for the armor, in my book.
Looking ahead
So far, the X‑Powers tick every box: secure, adjust‑on‑the‑fly fit, hike‑worthy sole, and protection that breeds confidence for both rider and pit‑crew (read: spouse). I’ll post a longer‑term verdict after a summer of WABDR scouting and this fall’s Black Hills Rally for Rangers, plus a cold‑wet Pacific‑Northwest winter test.
