Catalogue/On/Cloudultra 2

👟Ultra Trail

86Score

CoreScore breakdown

1,240 reviews · 20 expert tests

Comfort88

Durability86

Performance86

Value78

Fit accuracy87

Cloudultra 2

Ultra distance. Zero compromise.

Weight

296g

Heel drop

6mm

Stack

31mm

trailReflectiveRemovable insole

Best for

UltrasLong trail daysTechnical terrainWet conditions

Not ideal for

Speed racingWide feet

Best price

$175

RRP

$175

From On Running · Updated today

Buy from On Running

Lowest ever: $149

Lab measurements

Weight

296g

UK size 9 men's

Heel drop

6mm

Moderate

Heel stack

31mm

Forefoot stack

25mm

Midsole hardness

26HC

Soft

Energy return

65%

Higher = bouncier

Toebox width

96mm

Breathability

74/100

Outsole grip

88/100

Flexibility

58/100

Heel counter

3/5

Ankle hold

Sustainability

22%

Recycled content

Fit guide

Sizing specs

SizingTrue to size. Good for long days.

Size rangeUK 5–14

Width optionsD

Arch supportneutral

Removable insoleYes

Orthotic readyYes

Best for

Ultras

Long trail days

Technical terrain

Wet conditions

Not ideal for

Speed racing

Wide feet

Price tracker

7-month price history

$175

Oct

$166

Nov

$149

Dec

$175

Jan

$159

Feb

$175

Mar

$165

Apr

Current prices

Alert me when price drops below:

Construction

upper

Engineered mesh

midsole

CloudTec Phase + Helion HF

outsole

Missiongrip rubber

insole

Ortholite

heel Counter

Internal

lacing

Traditional + gaiter attachment

What people say

1,240

Reviews

Expert tests

Sentiment

What people love

Exceptional comfort over ultra distances

Missiongrip in wet is superb

Gaiter attachment point

Common complaints

Expensive

Narrow

Heavier than rivals