What waterproofing rating (HH) do I need for NZ tramping?

For general NZ tramping, look for at least 10,000mm hydrostatic head (HH) — this is the threshold where a jacket is considered truly waterproof. For the West Coast, Fiordland, and ranges like the Tararuas, which can deliver sustained heavy rain and wind-driven wet for days at a time, 20,000mm HH is the gold standard. Day walkers in drier regions can get away with 10,000–15,000mm HH for lighter showers.

What is the difference between a hardshell and a softshell jacket?

A hardshell uses a waterproof-breathable membrane (such as Gore-Tex or eVent) laminated to the fabric, making it fully waterproof and windproof. It is the right choice for NZ tramping and alpine conditions. A softshell is more flexible and breathable but is not fully waterproof — it suits high-output, dry-condition activities or use as a wind layer. If there is any chance of real rain, choose a hardshell.

How important is breathability in a rain jacket, and how is it measured?

Breathability is critical for active use. It is measured in grams of moisture vapour that can pass through one square metre of fabric in 24 hours (g/m²/24hr). During a long climb or ridge walk you generate significant heat; a breathable jacket lets sweat vapour escape so you do not get soaked from the inside. For active tramping, aim for 15,000 g/m²/24hr or higher. Budget shells often rate below 10,000 g/m²/24hr, which can feel clammy on big days out.

What types of seam sealing are there, and which do I need?

There are three main levels: critically taped (only the most exposed shoulder and top seams are sealed), partially taped (all horizontal seams sealed), and fully taped (every seam sealed, including underarms and pockets). For NZ's heavy, wind-driven rain — especially on multi-day tramps — fully taped seams are worth the investment. Critically taped is adequate only for light, casual use.

How should I layer a rain jacket for tramping?

The classic three-layer system works well: a moisture-wicking base layer (merino wool or synthetic), an insulating mid-layer (fleece or down jacket), and your waterproof shell on top. On warm, active days you may need only the base and shell. Pack the mid-layer for rest stops, ridgelines, and cold nights in huts. A slim-fitting shell with underarm vents (pit zips) makes the system more versatile.

Is a DWR coating the same as waterproofing?

No. DWR (Durable Water Repellent) is a surface treatment that causes water to bead and roll off the outer fabric. It keeps the shell fabric from becoming saturated — which would reduce breathability — but the waterproof membrane underneath is what actually keeps you dry. DWR wears off over time and can be refreshed by tumble-drying on a low heat or using a purpose-made wash-in or spray-on DWR product.

What rain jacket brands does Dwights Outdoors stock?

Dwights stocks the Peak XV range — including the Tornado and Pinnacle jackets — and Rab. The Peak XV jackets are our house brand, designed for NZ conditions at great value. Rab's Kangri jacket is a well-regarded tramping hardshell built for sustained wet weather. Browse our full range to find the right jacket for your activity.

What is a good waterproof jacket for NZ day walks?

For day walks, a hardshell with 10,000mm HH or above, fully or partially taped seams, and a breathability rating of at least 10,000 g/m²/24hr is a solid choice. The Peak XV Tornado is a great starting point. If you are doing more demanding or alpine day walks, step up to a fully taped shell with 20,000mm HH and higher breathability. A packable jacket that stuffs into its own pocket is a practical choice for days when weather is uncertain.

Rain Jackets NZ — Buyer's Guide & FAQs

Waterproofing Ratings Explained

Breathability Matters More Than You Think

Seam Sealing: Fully Taped is the Gold Standard

Hardshell vs Softshell

Frequently Asked Questions