Products
Tested using Methodology v0.12
Updated Sep 02, 2026 03:00 PM
SEE PRICE
Amazon
Tested using Methodology v0.16
Updated Sep 02, 2026 02:54 PM
SEE PRICE
Amazon
Heel Stack Height
37.3 mm
Weight
291.7 g (10.29 oz)
Heel-To-Toe Drop
9.9 mm
Plate
None
Heel Stack Height
38.1 mm
Weight
279.1 g (9.84 oz)
Heel-To-Toe Drop
7.6 mm
Plate
None
Our Verdict
PUMA ForeverRUN NITRO 2
PUMA ForeverRun NITRO 3
The PUMA ForeverRun NITRO 3 and PUMA ForeverRUN NITRO 2 are two iterations of the brand's stability daily trainer. The NITRO 3 is a worthwhile upgrade: it's lighter, more cushioned, more stable, and more energetic, making it a more well-rounded shoe overall. Stick with the NITRO 2 only if you actively prefer its firmer underfoot feel.
Variants
- ForeverRUN NITRO 2 (Black/White - (Men - US 9))
- ForeverRUN NITRO 2 (Cool Weather/Yellow Alert - (Women - US 7))
- ForeverRun NITRO 3 (Chambray Blue/White - (Women - US 7))
- ForeverRun NITRO 3 (Light Lavender/Inky Depths - (Women - US 7))
Main Differences for
Half/Full Marathon Racing
Half/Full Marathon Racing
Threshold
Half/Full Marathon Racing
5.9
6.6
Forefoot Stack Height
27.4 mm
30.5 mm
Weight
4.7
5.3
Forefoot Bending Energy Return
5.8
4.4
Heel Stack Height
37.3 mm
38.1 mm
Full Comparison
Design
Weight
4.7
5.3
Right Shoe Weight Photo
Compare High-Res
Compare High-Res
Left Shoe Weight Photo
Compare High-Res
Compare High-Res
Weight
291.7 g (10.29 oz)
279.1 g (9.84 oz)
Stack Heights
Stack Height Photo
Compare High-Res
Compare High-Res
Heel Stack Height
37.3 mm
38.1 mm
Forefoot Stack Height
27.4 mm
30.5 mm
Heel-To-Toe Drop
9.9 mm
7.6 mm
Advertised Heel-To-Toe Drop
10.0 mm
8.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
93 mm (3.7")
101 mm (4.0")
Outsole Arch Width
75 mm (3.0")
82 mm (3.2")
Outsole Forefoot Width
111 mm (4.4")
119 mm (4.7")
Heel Width-To-Stack Ratio
2.49
2.65
Forefoot Width-To-Stack Ratio
4.05
3.90
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
279 mm (11.0")
283 mm (11.1")
Internal Heel Width
66 mm (2.6")
68 mm (2.7")
Internal Forefoot Width
91 mm (3.6")
96 mm (3.8")
Wide Sizing Available
Yes
Yes
Forefoot Fit: Width
9.5
9.8
Forefoot Width Photo
Compare High-Res
Compare High-Res
Ball-Of-Foot TTS Deviation
0.3 mm (0.013")
1.5 mm (0.059")
Toe TTS Deviation
-2.6 mm (-0.102")
0.2 mm (0.009")
Forefoot Fit: Height
10
6.2
Forefoot Height Photo
Compare High-Res
Compare High-Res
Toe TTS Deviation
0.5 mm (0.020")
-4.5 mm (-0.179")
Arch Fit: Width
6.8
7.2
Arch Fit Photo
Compare High-Res
Compare High-Res
Arch Width TTS Deviation
-4.9 mm (-0.192")
-4.4 mm (-0.173")
Length Fit
5.0
10
Toe Clearance Photo
Compare High-Res
Compare High-Res
Heel Rocker Geometry
5.6
8.3
Heel Rocker Photo
Compare High-Res
Compare High-Res
Heel Spring
15 mm (0.6")
30 mm (1.2")
Heel Apex Position
23.2%
25.1%
Heel Rocker Angle
12.4°
22.6°
Forefoot Rocker Geometry
5.9
6.3
Forefoot Rocker Photo
Compare High-Res
Compare High-Res
Toe Spring
40 mm (1.6")
43 mm (1.7")
Toe Apex Position
61.8%
61.7%
Forefoot Rocker Angle
20.9°
21.4°
Foam
Primary Foam Picture
Secondary Foam Picture
Primary Foam Name
Nitrofoam
Primary Foam Type
Unknown
Secondary Foam Name
Nitrofoam
Secondary Foam Type
Unknown
Laces
Laces Picture
Lace Type
Flat
Width
6.0 mm (0.2")
Thickness
1.8 mm (0.1")
Stretch
12.5%
Breathability
7.5
Breathability Video
Upper Breathability
Upper Microscope Photo
Time-To-Dry
5.0
Time-To-Dry Timelapse
Time-To-Dry Graph
Preview Graph
Time To 30% Dry
9.4 hrs
Time To 70% Dry
22.8 hrs
Time To Dry
40.8 hrs
Water Absorption
7.6
Dry Weight Photo
Wet Weight Photo
Water Absorbed
41.0%
Other Features
Other Features Photo
Compare High-Res
Compare High-Res
Tongue Gusset Type
Non-gusseted
Semi-gusseted
Plate
None
None
Performance
Heel Compression Energy Return
3.1
4.1
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
69.6%
70.8%
Forefoot Compression Energy Return
5.5
6.3
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
72.6%
74.1%
Heel Cushioning
6.7
7.9
Heel Cushioning Picture
Compare High-Res
Compare High-Res
Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
3.22 J
3.39 J
Energy Absorbed At 1100N
8.32 J
9.62 J
Energy Absorbed At 1900N
14.03 J
17.30 J
Forefoot Cushioning
6.8
7.3
Forefoot Cushioning Picture
Compare High-Res
Compare High-Res
Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
4.31 J
4.61 J
Energy Absorbed At 1300N
7.26 J
7.75 J
Energy Absorbed At 2050N
10.60 J
11.18 J
Heel Firmness
8.5
7.8
Heel Firmness Graph
Preview Graph
Preview Graph
Firmness At 550N
46.0 N/mm
43.7 N/mm
Firmness At 1100N
59.8 N/mm
54.0 N/mm
Firmness At 1900N
85.0 N/mm
73.9 N/mm
Forefoot Firmness
8.9
8.5
Forefoot Firmness Graph
Preview Graph
Preview Graph
Firmness At 800N
63.4 N/mm
58.9 N/mm
Firmness At 1300N
83.8 N/mm
77.9 N/mm
Firmness At 2050N
117 N/mm
109 N/mm
Forefoot Long Run Cushioning
6.1
6.2
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
6.73 J
6.97 J
Energy Absorbed At 20km
6.53 J
6.73 J
Energy Absorbed At 30km
6.40 J
6.55 J
Energy Absorbed At 40km
6.30 J
6.41 J
Rocker Stiffness
5.7
5.6
Forefoot Rocker Stiffness Video
Forefoot Rocker Stiffness Graph
Preview Graph
Preview Graph
Force To Flatten The Rocker
54 N
53 N
Forefoot Bending Energy Return
5.8
4.4
Forefoot Bending Video
Forefoot Bending Energy Return
Preview Graph
Preview Graph
Forefoot Bending Energy Return
59.8%
54.6%
Forefoot Bending Stiffness
7.0
7.1
Forefoot Bending Resistance Picture
Compare High-Res
Compare High-Res
Forefoot Bending Resistance
Preview Graph
Preview Graph
Forefoot Bending Stiffness
9.9 N/mm
10.8 N/mm
Forefoot Bending Force
301 N
306 N
Heel Compression Depth
6.0
Heel Compression Graph
Preview Graph
Heel Compression At 550N
12.6 mm
Heel Compression At 1100N
20.4 mm
Heel Compression At 1900N
25.7 mm
Forefoot Compression Depth
5.7
Forefoot Compression Graph
Preview Graph
Forefoot Compression At 800N
13.6 mm
Forefoot Compression At 1300N
16.7 mm
Forefoot Compression At 2050N
18.8 mm
To access
Become a member
unlimited full product reviews,
product prices, and
other exclusive site features
PUMA ForeverRUN NITRO 2
PUMA ForeverRun NITRO 3
Comments
PUMA ForeverRUN NITRO 2 vs PUMA ForeverRun NITRO 3: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Members have direct access to buying advice on our member forum.