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Footwear

Vibram Megagrip

Also called Megagrip

What is Vibram Megagrip?

Megagrip is a Vibram rubber compound formulated for grip on wet and dry rock. It's softer and stickier than standard hiking rubber, which is why it holds on slabs and greasy roots, and why it wears out faster.

Vibram Megagrip at a glance

Made by
Vibram
Best on
Wet rock and roots
Trade
Wears faster than harder compounds

Where Megagrip sits in Vibram's range

Vibram makes many compounds, and Megagrip is the one that turns up in the specification list of most shoes marketed for wet, rocky ground. It's a softer rubber with a formulation aimed at holding friction on smooth wet surfaces, which is where ordinary hiking rubber loses confidence.

What it does on wet rock

The effect is real and noticeable on wet rock slabs, wet roots and polished stone, the surfaces that cause most trail falls. It does less for you in mud, where grip is about lug penetration and shape rather than compound, so a Megagrip sole with shallow lugs is still bad in a bog.

What the softness costs

The trade is lifespan. Softer rubber abrades faster, so a Megagrip outsole on hard, abrasive rock or road wears visibly quicker than a harder compound. Vibram's Litebase construction, often paired with it, thins the rubber layer to save weight, which shortens things further. Buying it means accepting you're paying for grip rather than mileage.

What this means when you're choosing

  • Megagrip paired with lug depth appropriate to your ground, since compound alone won't help in mud
  • Whether Litebase is also specified, which reduces weight and lifespan together
  • Whether you actually hike on wet rock, because on dry hardpack a harder compound lasts much longer

The common mistake

Buying it for dry hardpack and road approaches

Softer, stickier rubber abrades faster, so on dry abrasive ground and pavement you pay for grip you are not using and replace the shoe sooner. It is worth every mile on wet slab and greasy roots, and worth very little on a dry fire road.

Common questions

Is Megagrip worth paying extra for?

If you hike on wet rock, roots or slabs, yes, because that's where falls happen. If your trails are dry and hard, a harder compound will grip well enough and last considerably longer.

Does Megagrip work on mud?

Only as well as its lugs do. Mud grip comes from lug depth and spacing rather than from the rubber compound, so check the tread pattern rather than the compound name.

Where this is defined

Where this comes up

Guides on Tom's Hiking where vibram megagrip changes which product is right for you.

More in footwear

Lug depth

Lugs are the raised blocks on the sole of a boot or trail shoe, and lug depth is how tall they are, usually 3 to 6 mm. Deeper lugs bite into soft ground; shallower ones give more contact area on rock and hard trail.

Outsole

The outsole is the rubber layer on the bottom of a shoe, the part touching the ground. It carries the lug pattern and the rubber compound, which together decide grip, and it's usually the first part of a shoe to wear out visibly.

Midsole

The midsole is the foam layer between the outsole and your foot. It absorbs impact and sets how stiff or soft a shoe feels, and it's the part that quietly dies long before the tread looks worn.

EVA foam

EVA is the light, springy foam most hiking and running midsoles are made of. It cushions well and weighs little, but it compresses permanently over time, which is why shoes go flat after a few hundred miles.

Stack height

Stack height is how much material sits between your foot and the ground, measured in millimetres at the heel and forefoot. More stack means more cushioning and less ground feel; less means more feedback and a lower, more stable platform.

Heel-to-toe drop

Drop is the height difference between a shoe's heel stack and its forefoot stack, given in millimetres. Zero drop means the foot sits level; 8 to 12 mm tilts you forward slightly and shortens the load on the calf and Achilles.

Rock plate

A rock plate is a thin stiff sheet, usually TPU or a nylon composite, embedded in the forefoot of a shoe. It spreads the load from a sharp rock across the whole foot instead of letting it press into one point.

Shank

A shank is a stiffening insert running through the arch of a boot, made of steel, nylon or composite. It controls how much the boot twists and bends, which is what lets a boot support a heavy load and edge on rock.

Rand

A rand is a strip of rubber bonded around the lower edge of a boot's upper, most often at the toe. It takes the abrasion from rock and roots that would otherwise wear through fabric or leather, and it protects your toes from impact.

Gusseted tongue

A gusseted tongue is sewn to the sides of the boot with fabric panels instead of hanging free. It seals the gap along the laces so grit and water can't get in, and it stops the tongue sliding sideways as you walk.

Gaiters

Gaiters are fabric sleeves worn over the top of a shoe or boot to keep grit, snow and water out. Low trail gaiters cover the collar and stop scree filling your shoes; tall gaiters run to the knee and seal the leg against deep snow and wet brush.

Microspikes

Microspikes are elastomer harnesses with short chains and spikes, roughly 10 to 15 mm, that stretch over a shoe for traction on packed snow and ice. They are the middle rung between yaktrax-style coils and full crampons, and they are not mountaineering equipment.

Crampon

A crampon is a metal frame carrying 10 or more points up to 5 cm long that binds rigidly to a stiff-soled boot, so a climber can stand on hard alpine ice and steep snow. It is the tier above microspikes, and it is technical equipment that needs an ice axe and training.

Insulation weight in grams

Insulation weight is the mass in grams of one square meter of the insulating sheet inside a boot or glove. A 400g boot uses a heavier sheet than a 200g boot, so it is warmer, but it is nothing like twice as warm.

Vibram Arctic Grip

Arctic Grip is a Vibram outsole technology built for traction on wet ice. It stays pliable at temperatures where ordinary hiking rubber goes hard, which is the reason a winter sole grips where a three season one skates.

Flotation

Flotation is how well a snowshoe keeps you on top of snow instead of sinking into it. It is a function of deck surface area measured against your loaded weight, which is your body plus clothing, boots and everything in your pack.

Heel lift

A heel lift is a small wire or plastic bar behind the heel of a snowshoe that flips up so your boot rests on it during a climb. It stops your calf being held at full stretch on sustained steep ground.

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