Mammut Crater IV vs Crater Pro
Choose the Crater IV for a three-layer GORE-TEX ePE shell with a helmet-compatible hood and underarm ventilation. Consider the Crater Pro if its GORE-TEX PRO construction and high-reach cut better match climbing use. Mammut lists them at 482 g and 508 g.
Based on 87 included owner reviews.
The differences that matter
Both jackets offer harness-compatible storage, helmet coverage and ventilation. Those shared features mean the Pro needs to earn its place through the construction and cut you prefer. Its name does not establish that ordinary walking requires it.
The Pro uses recycled nylon and is cut to support high reaches. Try lifting your arms with a harness on, watching whether the hem rises and pockets become covered. The 26 g listed weight gap is less informative than whether the shape remains useful while moving.
Technical comparison
Crater IV
Three-layer GORE-TEX ePE waterproof construction. A helmet-compatible adjustable hood, underarm ventilation and harness-compatible pockets. The manufacturer lists a weight of 482 g.
Crater Pro
Three-layer GORE-TEX PRO ePE with recycled nylon fabric. A helmet-compatible storm hood, pit zips, harness-compatible pockets and a cut designed for high reaches. The manufacturer lists a weight of 508 g.
What do owners report?
Crater IV
This product has 64 included owner reviews. Repeated strengths include staying dry in rain (26.6%; 17 reviews); a comfortable fit (21.9%; 14 reviews); and room for layers underneath (9.4%; 6 reviews).
Published drawbacks include body sizing that runs too large (9.4%; 6 reviews).
Read the Crater IV owner reviews for the full published findings and revision scope.
Crater Pro
This product has 23 included owner reviews. Repeated strengths include staying dry in rain (26.1%; 6 reviews) and a comfortable fit (21.7%; 5 reviews).
Read the Crater Pro owner reviews for the full published findings and revision scope.
These mention shares describe separate owner groups, rather than performance measured under the same conditions.
Which should you choose?
Choose the Crater IV if its hood, pockets and regular mountain layout already cover your needs. Choose the Pro if the high-reach cut and construction provide a practical benefit with your climbing setup. Use the owner findings to identify fit concerns, without treating review mentions as equivalent-condition testing.