Is an Anorak Jacket Waterproof? | Depends On The Build

An anorak can be waterproof, water-resistant, or simply windproof — the style name alone doesn’t guarantee rain protection.

An anorak is a style of hooded jacket, not a performance label. Whether “is an anorak jacket waterproof” gets a yes depends entirely on the specific model’s materials, seam construction, and any stated waterproof rating. One anorak might shrug off a downpour while another soaks through in light drizzle, so the answer comes down to checking the specs, not the name.

What Makes An Anorak Actually Waterproof?

A waterproof anorak needs three things working together: a waterproof membrane or durable coating, sealed seams, and a published waterproof rating. If any of those is missing, the jacket may only be water-resistant.

Product pages reveal the difference. RÆBURN’s Waterproof Anorak is described as fully waterproof, fully seam-sealed, and breathable, with a 5k hydrostatic head rating. On’s Waterproof Anorak claims windproof and waterproof performance up to 15,000 mm. Both earn the “waterproof” name because they carry a rating and sealed seams.

When you find an anorak you like, look for three phrases on its spec sheet:

• Waterproof membrane or coating — the material that blocks water from passing through.
• Seam sealing or taped seams — seals the needle holes where rain sneaks in.
• A hydrostatic head rating (measured in mm) — the higher the number, the more water pressure the fabric handles.

Water-Resistant Is Not The Same As Waterproof

The two terms get swapped constantly, but they describe different levels of protection. Water-resistant fabric repels light rain and moisture for a short time; waterproof fabric blocks water entirely under real pressure.

Napapijri’s Rainforest Tech Anorak illustrates the confusion perfectly. The product page labels the jacket “water-resistant,” yet lists a “Waterproof fabric: 3000mmH2O” and critically sealed seams. The material spec suggests meaningful rain protection, but the brand’s own label stops short of calling it fully waterproof. That distinction matters — a “critically sealed” jacket seals only the most exposed seams, while “fully sealed” covers every one.

Also worth knowing: DWR (durable water repellent) is not waterproofing. That coating makes water bead up and roll off the outer fabric, but it wears away over time and does nothing against sustained rain. An anorak with DWR but no membrane is wind-resistant at best.

Are All Anoraks Waterproof? The Common Mistakes

No. The single biggest mistake is assuming every anorak is rainproof. Many are designed as windbreakers or fashion pieces with only light water resistance.

The other common errors:

• Ignoring seam construction — untaped or only critically taped seams leak in prolonged rain, even on jackets with a membrane.
• Treating a style name as a rating — “anorak” describes the hooded pullover cut, not its waterproof performance.
• Comparing ratings across brands — a stated mm rating is useful, but read it alongside seam-sealing and breathability claims rather than treating numbers from different brands as directly equivalent.

Ratings also have limits. A 5,000 mm jacket handles moderate rain well; a 15,000 mm jacket handles sustained downpours. Neither is a guarantee if the seams aren’t sealed or the fabric isn’t breathable enough for the activity — breathability matters because sweat buildup inside a non-breathable jacket leaves you damp anyway.

How To Tell If Your Anorak Is Waterproof

Check the product page or the tag inside the jacket for the three signals: explicit “waterproof” wording, a hydrostatic head rating, and a seam-sealing claim. A jacket that says only “water-resistant” or “showerproof” is not built for heavy or prolonged rain.

If you’re shopping for a snowboard anorak, waterproofing matters even more — snow melts into moisture, and you want a jacket with both a solid rating and sealed seams. Our tested snowboard anorak roundup covers models that handle the conditions.