Discover the new Women’s Fusion 5.0 in Antarctica / Lime Cream. The updated silhouette ushers in a brand-new era for our trusted neutral trainer. Designed for runners seeking a balanced blend of cushioning and performance, the new Fusion 5.0 features a 6mm heel-toe offset, more robust foam package, refined fit, and a redesigned Fulcrum for a silky-smooth experience that you’ll want to run again and again.
The Fusion 5.0 is ideal for longruns and fasterworkouts.
Built for runners seeking a smooth and energetic ride, the KARHUFusion5.0 introduces the next generation of the trusted neutral trainer.
A repositioned Fulcrumunit guides the foot efficiently through each stride, creating a more propulsive running experience. Combined with an amplifiedtoespring, the Fusion 5.0 delivers a responsive toe-off with added momentum and energy return. The midsole features all-new AeroFoamNOVA, allowing for a higher stack height and a softer, more cushioned ride with improved rebound. A criticalfoaminsole provides durable underfoot comfort that maintains its performance over time.
Designed for a balanced fit, the Fusion5.0 offers a secure midfoot lockdown while maintaining ample room in the toe box, creating a comfortable running experience for everything from daily training to longer mileage days.
Technologies of the KARHU Fusion 5.0 - Repositioned Fulcrum unit for a more propulsive ride - AeroFoam NOVA midsole with increased stack height - Critical foam insole for long-lasting cushioning - Amplified toe spring for an energetic toe-off - Secure midfoot fit with a spacious toe box - Engineered upper construction for comfort and support
Weight US8: 240 g / 8.5 oz Heel-to-toe drop: 33 mm – 27 mm
We ship to most countries in the EU. Your order is prepared for shipment on business days the next morning after you placed your order. Typically, the warehouse is able to manage and send out your order the same day, or the next morning after they start processing it!
US Women's Size
UK Size
EU Size
Shoes Length (mm)
6
4
37
234 mm
6.5
4.5
37.5
238 mm
7
5
38
243 mm
7.5
5.5
39
246 mm
8
6
39.5
251 mm
8.5
6.5
40
255 mm
9
7
40.5
259 mm
9.5
7.5
41.5
263 mm
10
8
42
268 mm
10.5
8.5
42.5
272 mm
11
9
43
276 mm
12
9.5
44.5
285 mm
The updated Fusion 5.0 is designed for runners seeking a balanced blend of cushioning and a propulsive ride.
TECHNOLOGY
The KARHU Fulcrum technology is designed to keep all forces going forward, reducing braking forces and using your body's natural energy to create a smoother ride. It's what we call the Rolling Effect. Fulcrum Technology provides: Balanced Cushioning, Increased Support, More Energy. The Fusion features a three-quarter length fulcrum.
OrtixFit shapes your mid sole and upper volumes using data directly collected from over 4 Million runner's feet. What started in 2018 with the launch of the Karhu Ikoni the 1st model shaped by ORTIX, we now offer all our footwear models with our ORTIX Fit, based on actual scanning data in regular, HiVo (more volume) and Hera (women specific) Fit volumes. Karhu collaborates with Volumental(TM) and Fleet Feet(TM) create personalized fit experiences.
Lovely style and so comfy. Also gave me more lift and took 3 minutes off my 5k run!! Love how super light they are too.
I got a size bigger than my shoe size but I like room so my toes haveore space. Fit well around foot arches and ankle.
M
Marisa Lopes (United States)
Good shoe, runs small
I tried the size measurement instructions on the website, and it had me select a size 7 womens (plus additional room, based on the next size up measurements). I tried them out for a run today and it's definitely small, with my toes hitting up against the end of the shoe. I should have definitely gotten a size 7.5. I would recommend measuring and then going a half size up to avoid being stuck with a shoe that's too small. Otherwise, I think the shoe may be more comfortable, it's hard to tell unfortunately.
Lovely style and so comfy. Also gave me more lift and took 3 minutes off my 5k run!! Love how super light they are too.
I got a size bigger than my shoe size but I like room so my toes haveore space. Fit well around foot arches and ankle.
M
Marisa Lopes (United States)
Good shoe, runs small
I tried the size measurement instructions on the website, and it had me select a size 7 womens (plus additional room, based on the next size up measurements). I tried them out for a run today and it's definitely small, with my toes hitting up against the end of the shoe. I should have definitely gotten a size 7.5. I would recommend measuring and then going a half size up to avoid being stuck with a shoe that's too small. Otherwise, I think the shoe may be more comfortable, it's hard to tell unfortunately.
