The Keen Wk400 Review & Lab Test: Shop Men’S & Women’S Models of 2026

The KEEN WK400 is a versatile walking shoe designed for those seeking comfort and durability. With its rocker-bottom sole, this shoe is ideal for individuals looking to accumulate their daily steps with ease.
The lab results indicate that the design promotes efficient movement, contributing to a smooth walking experience. Its robust build also allows for seamless transitions between urban environments and outdoor activities.


Pros

  • Rocker sole propels you forward
  • Copious amount of cushioning
  • Amazingly comfortable step-in feel
  • Highly durable and abrasion-resistant
  • More stable than it seems!
  • Can go from road to trail
  • Accommodating toebox

Cons

  • Needs some getting used to
  • Heavier than average
  • Slippery when wet

Key Features

  • MATERIAL & CONSCIOUSLY CREATED: Crafted with premium nubuck leather and breathable mesh lining to keep your feet cool.
  • CLOSURE & COMFORT: Features offset lacing that reduces pressure on the top of the foot, along with a removable footbed for long-lasting comfort.
  • TRACTION: Higher traction rubber offers sure footing, while multi-directional lugs enhance grip on stable terrain.
  • SUPPORT & DESIGN: Incorporates a full-length featherweight nylon plate for added stability and KEEN.CURVE design for nonstop propulsion.
  • FIT & CARE TIPS: KEEN Contoured Fit that adapts to the natural shape of your foot. Easy to care for by gently brushing with a damp sponge.

Specifications

  • Sole material: Rubber
  • Outer material: Leather
  • Inner material: Mesh
  • Closure type: Lace-Up

Keen Wk400 Review & Lab Test: Shop Men’S & Women’S Models – Price, Ratings, Reviews & Sales Insights

KEEN WK400 On Cloudnova 2 HOKA Transport Nike Motiva
Price $160 $160 $140 $110
Arch support Neutral Neutral Neutral Neutral
Condition Bunions - - -
Orthotic friendly
Weight lab Weight brand 13.4 oz / 381g 11.3 oz / 320g 10.9 oz / 309g 10.8 oz / 306g
Breathability Moderate Breathable Warm Moderate
Use City For standing all day For standing all day City
Size Slightly small True to size True to size True to size
Midsole softness Balanced Balanced Balanced Soft
Difference in midsole softness in cold Small Normal Big Small
Insole thickness Average Average Average Thin
Removable insole
Stiffness Stiff Moderate Stiff Moderate
Torsional rigidity Stiff Moderate Stiff Stiff
Heel counter stiffness Stiff Flexible Moderate Flexible
Heel tab Finger loop None Finger loop None
Drop lab 21.4 mm 12.4 mm 8.0 mm 9.3 mm
Heel stack lab 45.7 mm 33.1 mm 34.1 mm 34.9 mm
Forefoot 24.3 mm 20.7 mm 26.1 mm 25.6 mm
Width / fit Wide Medium Narrow Narrow
Toebox width Wide Medium Narrow Medium
Closure Laces Laces Bungee laces Laces
Toebox durability Decent Decent Good Good
Heel padding durability Decent Decent - Decent
Outsole durability Good Decent - Decent
Midsole width - forefoot Average Wide Average Average
Midsole width - heel Wide Wide Average Wide
Outsole hardness Average Average Average Very hard
Outsole thickness Thick Average Average Average
Tongue padding Thick Average Average Thick
Tongue: gusset type Both sides (semi) None None Bootie
Material Mesh Mesh - Mesh
Ranking Bottom 8% Top 6% Bottom 5% Top 20%
Popularity Bottom 30% Top 20% Top 14% Top 17%