The Adidas Defiant Speed 2 Review & Lab Test of 2026

The Adidas Defiant Speed 2 is a speed-oriented tennis shoe designed for players seeking stability and durability on the court. With notable features inherited from the higher-end Ubersonic model, this shoe is particularly suitable for those who prioritize performance without compromising on cost.

Lab results indicate that the lower section of the shoe provides excellent stability, which translates into reliable support during quick lateral movements. However, the upper design may require enhancements to accommodate a wider range of foot shapes and ensure a secure lockdown.

Pros

  • Grounded platform with good court feel
  • Stable base for a speed shoe
  • Generously padded insole
  • Fairly flexible forefoot
  • Impressive durability for the money
  • Great balance of grip and give

Cons

  • Not everyone can achieve a secure lockdown (especially skinny feet)
  • Higher drop may cause toe jamming

Key Features

  • Lightweight Design: Crafted for speed with a breathable mesh upper.
  • Adiwear Outsole: Specifically designed for hard court surfaces, providing excellent grip and traction.
  • Bounce Midsole: Offers cushioning and flexibility for dynamic movement.
  • Supportive Heel: TPU heel construction enhances fit and comfort during play.
  • Sustainable Materials: Made in part with at least 20% recycled content, supporting eco-friendly practices.

Specifications

  • Origin: Imported
  • Sole Material: Rubber
  • Outer Material: Rubber
  • Closure Type: Lace-Up

Adidas Defiant Speed 2 Review & Lab Test – Price, Ratings, Reviews & Sales Insights

Adidas Defiant Speed 2 Wilson Rush Pro 4.0 Mizuno Wave Exceed Tour 6 ASICS Gel Dedicate 8
Price $120 $135 $140 $80
Shoe type All Court All Court All Court All Court
Construction Speed Stability Speed Stability
Breathability Moderate Warm Moderate Breathable
Weight lab 12.2 oz / 347g 12.9 oz / 367g 11.7 oz / 332g 11.3 oz / 319g
Lightweight
Drop lab 11.8 mm 9.1 mm 10.7 mm 10.2 mm
Width / fit Medium Medium Medium Medium
Toebox width Medium Medium Medium Medium
Size True to size True to size Slightly small Slightly small
Midsole softness Balanced Balanced Firm Balanced
Stiffness Flexible Stiff Flexible Flexible
Torsional rigidity Moderate Moderate Moderate Moderate
Heel counter stiffness Moderate Stiff Stiff Flexible
Midsole width - forefoot Average Average Very narrow Narrow
Midsole width - heel Average Average Very narrow Narrow
Outsole durability Good Decent Bad Decent
Heel padding durability Good Bad Good Bad
Heel stack lab 28.8 mm 29.1 mm 30.2 mm 28.6 mm
Forefoot 17.0 mm 20.0 mm 19.5 mm 18.4 mm
Insole thickness Thick Thin Average Average
Removable insole
Heel tab Extended heel collar None Extended heel collar None
Toebox durability Good Good Good Bad
Outsole hardness Average Average Average Average
Outsole thickness Thin Average Very thin Average
Ranking Top 44% Top 47% Top 21% Bottom 15%
Popularity Bottom 46% Bottom 5% Top 18% Top 34%