Brooks Cascadia 18 vs Merrell Agility Peak 5

Brooks Cascadia 18 vs Merrell Agility Peak 5: weight, drop (8 mm vs 6 mm), cushioning, lugs and which races each one suits best.

Quick verdict

The Merrell Agility Peak 5 is 14 g lighter. The Merrell Agility Peak 5 has more cushioning (39 mm at the heel). The Merrell Agility Peak 5 grips better, with 4.5 mm lugs.

Brooks Cascadia 18BrooksBrooks Cascadia 18

An all-terrain trail classic: stable, protective and reliable on any ground thanks to its pivot system that adapts the foot to the terrain. Balanced cushioning for medium and long distances.

Check price(se abre en una pestaña nueva)Brooks Cascadia 18: specs and races
Merrell Agility Peak 5MerrellMerrell Agility Peak 5

The best value for getting started in trail running. An honest, functional shoe, comfortable from the first kilometre thanks to FloatPro foam, with a Vibram TC5+ outsole offering good all-round grip on mixed terrain. A versatile option without overspending. Weight: 295 g. Drop: 6 mm.

Check price(se abre en una pestaña nueva)Merrell Agility Peak 5: specs and races

Spec-by-spec comparison

SpecBrooks Cascadia 18Merrell Agility Peak 5
Weight (per shoe)314 g300 g
Drop8 mm6 mm
Heel stack33 mm39 mm
Forefoot stack25 mm33 mm
Lug depth4 mm4.5 mm
FitMediumNarrow
Stable platform––
Waterproof––
Carbon plate––
Terrainmixedmixed

Brand-stated specs or values measured by independent sources. Green marks the better value when one is clearly better.

Which races does each one suit? Checked against 249 races

For each race we look at the terrain, the distance and the average rainfall around race day in recent years, and see which shoe fits best.

Merrell Agility Peak 5: better pick in 48 of 249

Tied in 201

RaceWhat it needsBrooks Cascadia 18Merrell Agility Peak 5
Grand Raid de La Réunion180 kmUltra: cushioningCopesBuilt for it
L'Infernal Trail des Vosges205 kmLikely mudCopesCopes
Nice Côte d'Azur by UTMB168 kmUltra: cushioningCopesBuilt for it
Topo Athletic Bibracte Ultra-Trail185 kmLikely mudCopesCopes
Trail Menorca Camí de Cavalls185 kmLikely mudCopesCopes
Ultra Tour des 4 Massifs176 kmUltra: cushioningCopesBuilt for it
Ultra Trail Gran Vuelta al Valle del Genal167 kmUltra: cushioningCopesBuilt for it
UTMB Mont-Blanc174 kmUltra: cushioningCopesBuilt for it

Criteria: mud when it often rains around race day on soft ground; rock for skyrunning and vertical kilometres; ultra from 50 km; mixed otherwise.

Analysis: where they really differ

Two all-rounders with almost identical weight (314 g and 300 g). The Agility Peak 5 has more foam (39 mm) and deeper lugs (4.5 mm), but a narrow fit. The Cascadia 18 is firmer, with a medium fit and an 8 mm drop.

Choose the Brooks Cascadia 18 if…

  • Your foot needs a medium-width fit.
  • You want a firm, stable ride on varied terrain.
  • An 8 mm drop suits you.

Choose the Merrell Agility Peak 5 if…

  • You want more cushioning for long runs.
  • You need more grip on loose ground.
  • You have a narrow foot.
Check price: Brooks Cascadia 18(se abre en una pestaña nueva)Check price: Merrell Agility Peak 5(se abre en una pestaña nueva)
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