Myr RB9X ($150)
Introduction
I ran within the Icebug Järv RB9X final yr, my first expertise with the Icebug model. With one other yr of path operating product growth underneath their belts and a world champion athlete on their roster in Tove Alexandersson, Icebug returns with the Myr.
Designed as an approachable all-around path shoe to enhance the technical-trail-oriented Järv, the Myr boasts equally spectacular sustainability credentials. With 7% bio-based materials and 24% recycled materials, Icebug lists the Myr at solely 10 kg CO2e per pair, lower than the business normal.
Professionals:
Good lugs for a highway to path shoe; dealt with extra technical trails than I’d count on from the catalog description
Nice sustainability credentials
Sturdy and sturdy for the value level
Will accommodate a variety of ft
Cons:
Stats
Pattern Weight: girls’s 9.7 oz / 272 g US8.5
Stack Peak: 38 mm heel / 30 mm forefoot (measured)
Platform Width: 88 mm heel / 70 mm midfoot / 110 mm forefoot
Most comparable sneakers
Icebug Järv
Topo Ultraventure 4
Saucony Xodus Extremely 4
Brooks Cascadia
First Impressions, Match and Higher
Compared to the Järv, the Myr is barely decrease to the bottom, with a much less aggressive outsole. Although marketed as lighter, the load distinction isn’t huge: 272 g for the Myr vs. 284 g for the Järv in a US W8.5. .The load financial savings is because of the supercrticial ETPU vs TPU midsole, decrease stack, and smaller lugs which can be partially balanced out by the addition of a gentle liner, which provides important consolation.
The double jacquard polyester higher is made from 42% recycled supplies. It’s backed with a really gentle liner that makes for a snug step-in expertise when mixed with the thickly padded tongue. Curiously, that liner consists of 100% recycled Ocean RePET polyester, derived from plastic waste that in any other case would have ended up within the ocean. The detachable SuperC Foam™ insole is lined with the identical materials.
Customary laces run via agency, bolstered leather-like grommets. The grommets precipitated some slight irritation on the highest of my foot even via the thick tongue, however which may be a n=1 expertise.
The higher is evenly bolstered with a laminated mudguard across the toe, probably including sturdiness however not a lot rock safety.
The inner heel counter is sort of inflexible however doesn’t come very far up the heel, giving solution to a thickly padded heel collar that’s far more versatile and unlikely to trigger any rubbing. Total, it’s a shoe that feels nice to placed on: kudos to Icebug for considerably enhancing consolation on this new addition to their lineup.
Match is true-to-size for my considerably low-volume foot. The midfoot is slim sufficient for a safe match, however the toe field has slightly further room. No slippage and no complaints right here on sizing or match.
Midsole & Platform
The Steam Foam supercritical eTPU midsole is a lighter, extra responsive enchancment over the common TPU discovered within the Järv. It feels softer underfoot however maintains some vitality return.
There’s not a lot flexion in any path right here, although barely greater than the extraordinarily stiff Järv. It feels structured and stable underfoot, able to steamroll over some rocks, however not versatile sufficient to be high of the road for agility.
The stiffness is extra noticeable on paved surfaces; whereas marketed as an all-terrain each day driver, it felt considerably higher suited to trails and gravel.
I measured the stack peak on my pair at 38 mm heel / 30 mm forefoot, reasonably excessive in right now’s path shoe world. The Myr feels very steady with out being excessively large within the base, and the 8mm drop made for snug transitions.
Outsole
Icebug is legendary for delivering traction in all situations, particularly with their studded line, and the Myr falls on the least aggressive finish of the spectrum.
The outsole is made from Icebug’s RB9X™ compound, with 26% pure rubber and 15% recycled rubber. Rectangular lugs are smaller and sparser than on the Järv, which is oriented in the direction of extra technical trails. I didn’t have any points with grip on my native singletrack, together with on moist rocky sections.
Journey, Conclusions and Suggestions
The Myr is a snug all-around path coach at an affordable value level with some severely spectacular sustainability credentials. It lives as much as its billing as a snug each day driver for all runners on gentle to reasonable trails and gravel, and it may additionally work nicely on moist, slippery roads throughout winter coaching, though I most well-liked it on path.
Whereas maybe not fairly as gentle or responsive as I might need anticipated from the catalog description, it appears sturdy and sturdy. My solely subject was with the agency grommets on the higher, however in any other case I’d fortunately log miles on this all winter.
Jen’s rating: 8.525/10 😊😊😊😊
Journey (30%): 8/10 – nice for many trails, however barely stiff
Match (30%): 9/10 (-1 just for points with the higher)
Worth (10%): 9.5/10
Type (5%): 9.5/10
Traction (15%): 8/10
Rock Safety (10%): 8/10
4 Comparisons
Icebug Järv (RTR Evaluate)
As talked about earlier, the Järv is barely larger stack and stiffer, with a extra aggressive outsole. Each are true to dimension and sturdy somewhat than gentle and fast and each have nice sustainability specs. The Järv is geared in the direction of extra technical trails, however the Myr is considerably extra snug and 10g lighter.
Topo Ultraventure 4 (RTR Evaluate)
Each are highway to path sneakers designed for consolation. Whereas I did not evaluate the Ultraventure 4, RTR reviewers reported that it’s a little lighter, with comparable stack peak however with 5 mm drop vs. 8 mm for the Myr. The Myr is barely narrower within the forefoot than the Topo toebox so could also be higher for low quantity ft.
Saucony Xodus Extremely 4 (RTR Evaluate)
Each are comparable in stack peak (36/30 mm for the Xodus Extremely 4 vs 38/30 for the Myr) and good generalist sneakers. Neither is the lightest on the market, however each rating nicely for sturdiness and affordability. I discovered the Xodus slightly extra responsive and higher on technical trails, particularly given the Vibrant outsole, however the Myr is barely cheaper and has higher sustainability chops.
Brooks Cascadia 19 (RTR Evaluate)
The Cascadia and Myr each have gentle, snug liners for an excellent step-in expertise and are good on a wide range of surfaces. The Cascadia is a bit wider each internally and externally, making it an excellent match for larger quantity ft. The Cascadia additionally has barely extra flex, however in any other case the sneakers are comparable and shine on straightforward to reasonable trails and at straightforward coaching paces.
Index to all RTR evaluations: HERE
The Myr R9BX might be accessible March 2026 at Icebug
Tester Profiles
Jennifer Schmidt discovered path operating in her mid-20’s and commenced dabbling on the roads a couple of years later. Path 50k’s are nearest and dearest to her coronary heart, and he or she not too long ago took the win on the 2025 Means Too Cool 50k and positioned sixth on the 2025 Black Canyon Ultras 50k. Lately, yow will discover her totally on the candy California singletrack round Auburn, chasing aggressive and private objectives over a wide range of surfaces and distances. Relying on the season, she additionally competes within the USATF highway and XC circuits for Sacramento Operating Affiliation’s racing staff, with a marathon PR of two:41.
All RTR evaluations: HERE
Newest Opinions-Chronological Order HERE
Thanks for studying our evaluate!
Purchasing at our companions beneath is far appreciated and helps help RoadTrailRun
Samples have been supplied at no cost for evaluate functions. No compensation was supplied by manufacturers for writing this text. RoadTrail Run does have affiliate partnerships and will earn fee on merchandise bought by way of purchasing hyperlinks on this article. These partnerships don’t affect our editorial content material. The opinions herein are completely the authors’.
Feedback and Questions Welcome Beneath! Please tell us mileage, paces, race distances, and present most well-liked sneakers
FREE 2 Day Delivery EASY No Sweat Returns
Europe solely: use RTR code RTR5ALL for 5% off all merchandise, even sale merchandise
FLEET FEET
ROADRUNNERSPORTS
TOP4RUNNING EUROPE
Use RTR code RTRTOP4 for 5% off all merchandise, even sale merchandise
SPORTSSHOES.COM UK/EU
Use our code RTR235 for five% off all merchandise
WATCH OUR YOUTUBE REVIEWS ON THE ROADTRAILRUN CHANNEL
Google “roadtrailrun Shoe Identify” and you may be fairly certain to search out nearly any run shoe and all types of run and hike gear during the last 10 plus years
RoadTrailRun Official Retailer Customized Fractel Caps and Bucket Hats
Cap:$35 Bucket:$39
Free US Economic system Delivery!
Please Like and Observe RoadTrailRun
