Rain
Choosing rain gear that works
A rain suit has three failure points, and almost no listing on this shelf addresses more than one.
By Jean-Benoit Buisson
The three failure points
The fabric. Measured as a hydrostatic head in millimetres. Comparable, and only between products that publish it.
The seams. A row of needle holes through the cloth. Sealed — and fully rather than critically — or not. This is where most rain gear actually leaks, and it is the property least often published.
The zip. The largest deliberate opening in the garment. A flap, a waterproof strip, a sealing design: three separate measures, and naming them says the opening was thought about.
What this shelf actually publishes
One suit here publishes all three — a fabric figure, fully sealed seams and the zip described layer by layer. One publishes a fabric figure and a breathability figure and says nothing about its seams. One publishes laminated seams and no fabric figure at all. Two publish descriptions and no figures.
Read them against each other. Between the first three you can see what a complete specification looks like.
Breathability. Waterproofing alone describes a bag. A suit you work in has to let vapour out, and only one product in this family publishes both numbers.
The measurement nobody publishes
Leg zip length. A full-length zip goes on over boots at the roadside in the rain; a short ankle zip means taking your boots off on a hard shoulder. Not one listing here gives it.