Decode the labels and buy with confidence for your next adventure.
Whether you’re paddle boarding on the Gold Coast, kayaking around Rottnest Island, or sailing in Sydney Harbour, your gear matters — especially when it comes to what you wear. But if you’ve ever looked at a jacket or wetsuit label and felt overwhelmed by the jargon, you’re not alone.
Terms like waterproof and breathability ratings, taped seams, or DWR coating often pop up in product descriptions — but what do they actually mean? And more importantly, how do they help you stay dry and comfortable on the water?
Here’s a clear, no-fuss guide to understanding watersport clothing specs so you can make smart, informed choices the next time you’re gearing up.
1. Waterproof Ratings – What They Really Measure
Let’s start with the big one: waterproofing.
The waterproof rating of a garment is measured in millimetres (mm) and tells you how much water pressure the fabric can withstand before it leaks. The higher the number, the more waterproof the garment.
Common Waterproof Ratings:
- 5,000mm – Light rain or splash-resistant (fine for short paddles or drizzles)
- 10,000mm – Good for moderate rain and active paddling
- 15,000mm+ – Suitable for heavy rain, high water exposure, or longer time on the water
Australian tip: If you’re paddleboarding in tropical Queensland rain or heading into surf conditions, aim for 10,000mm or more.
2. Breathability Ratings – Keep the Sweat Out
Just because a jacket keeps rain out doesn’t mean it keeps you comfortable. That’s where breathability comes in.
Breathability is measured in grams (g) and tells you how much sweat (or vapour) can escape through the fabric over 24 hours. If you’re being active — and most watersports are — breathability is key.
Breathability Guide:
- 5,000g – Light activity (fine for short walks or slow paddling)
- 10,000g – Good for moderate activity
- 20,000g+ – Best for high-intensity paddling, SUP racing, or kayaking
When choosing a top layer for your watersport adventures, look for balanced waterproof and breathability ratings. You want to stay dry and avoid overheating.
3. Seam Sealing – The Hidden Hero
Even the best-rated fabric can leak if the seams aren’t sealed. Look for:
- Critically Taped Seams – Only key seams (like shoulders) are sealed. Good for occasional use.
- Fully Taped Seams – Every seam is sealed. Ideal for full weather protection.
- Welded or Glued Seams – High-end, lightweight, and ultra-waterproof — great for racing gear.
4. DWR Coating – Your First Line of Defence
DWR (Durable Water Repellent) is a treatment applied to the outer layer of waterproof gear that helps water bead and roll off. While not a standalone waterproof solution, it enhances performance — especially when combined with solid waterproof ratings.
Care tip: DWR wears off over time. Reapply with a spray-on treatment to extend your garment’s life.
5. Quick-Dry and Wicking Fabrics
Not everything needs to be fully waterproof. Mid-layers and base layers benefit more from moisture-wicking and quick-dry fabrics. These materials pull sweat away from your skin and dry rapidly if they get wet — essential if you’re out all day or in changing conditions.
6. Fit and Flexibility – The Overlooked Spec
When you’re paddling, bending, or lifting your board, your gear needs to move with you. Look for garments with articulated arms, stretch panels, or a “paddle-specific” fit. It’s not just about comfort — it’s about performance and preventing fatigue.
Buying watersport clothing shouldn’t feel like decoding a science textbook. Once you understand waterproof and breathability ratings, seam sealing, and fabric treatments, you’ll know exactly what to look for — and avoid getting caught out mid-session.
So next time you’re choosing a spray jacket, paddle pants, or waterproof robe, remember: it’s not just what looks good, but what’s built to perform on the water.
