Open Water Wetsuit Buying Guide: Complete Guide to Thickness Selection, Buoyancy Assistance, and Dressing Techniques

Introduction

Taiwan’s open water swimming environments are diverse, ranging from the warm 27–30°C seawater off Kenting in summer, to the low 15–18°C water temperatures along the Northeast Coast in winter, and the 24–26°C lake water at the Sun Moon Lake triathlon. Each scenario demands a completely different wetsuit. Choosing the right wetsuit is not just about comfort—in low water temperatures, it is essential for safely completing a race.

Wetsuit Thickness and Suitable Water Temperatures

Mixed thickness (e.g., 3/2 mm) means 3 mm on the torso and 2 mm on the limbs, balancing warmth and mobility

Wetsuit Material Analysis

Neoprene Quality Differences

All wetsuits are made of neoprene, but quality varies significantly:

• Yamamoto Neoprene: Made by Yamamoto Corporation in Japan, the highest quality in the industry. Made from limestone rather than petroleum, offering better stretch and lighter weight. Typically used in high-end models (above $400 USD)
• Standard Neoprene: Used in most mid-priced wetsuits, performs well but with slightly less stretch
• Ultraflex Series: Specially treated neoprene with improved arm mobility, ideal for swim-focused triathletes

Wetsuit Surface Coatings

• Superstretch Coating: Smooth surface that reduces water resistance, standard on racing models
• Titanium Coating: Reflects body heat, providing better warmth in low water temperatures

Buoyancy Design: Helping You Swim Faster

Racing open water wetsuits incorporate buoyancy panels in specific areas:

• Legs (thighs to hips): Thicker rubber layers lift the lower body naturally, reducing leg drag
• Core area: Improves body horizontal alignment, reducing energy expenditure
• Arms: Deliberately thinner material to ensure unrestricted stroke mobility

Research shows that high-buoyancy racing wetsuits can improve speed by approximately 3–5% at the same heart rate output compared to swimming without a wetsuit.

Recommended Racing Wetsuit Brands for Taiwan

• Orca Apex Flex: Uses Yamamoto rubber, top-tier mobility, suitable for athletes with strong swimming technique
• Zone3 Aspire: British brand, excellent buoyancy assistance design, great value for money
• Roka Maverick X: Silicon Valley brand, outstanding swimming performance, widely praised among triathletes
• Blueseventy Reaction: Entry-level racing model, reasonably priced, ideal for first-time wetsuit buyers

Size Selection and Fitting Tips

1. Choose by weight and height: Each brand provides detailed size charts; weight takes priority over height when selecting a size
2. The wetsuit should feel snug but not restrict breathing: If you feel noticeable chest compression or difficulty breathing, size up
3. Arm extension test: Extend both arms forward to simulate a stroke, confirming no significant tightness around the shoulders
4. Squat test: Perform a deep squat to confirm the waist rubber is not overly restrictive

Dressing and Undressing Tips (Essential for Race Day)

Dressing Tips

• Use a plastic bag over your feet before sliding into the wetsuit to prevent fingernails from damaging the material
• Pull up gradually from the ankles in sections, ensuring no excess wrinkles in each section
• Before zipping up, confirm there is no bunched-up rubber around the armpits

Race-Day Undressing Tips (T1 Transition)

• Unzip the back zipper (usually assisted by a pull cord) and peel it downward
• Cross your arms, grab the shoulder straps, and push downward to roll the wetsuit down to your waist
• Sit on the ground and push the suit down from the outside of your legs, peeling it off like rolling down
• With practice, the entire process takes about 15–30 seconds; it is recommended to practice regularly

Wetsuit Care

• Rinse immediately with clean water (room temperature) after each use—never use hot water
• Dry in the shade; do not expose to sunlight (UV rays accelerate rubber aging)
• Dry inside out (dry the inner layer first)
• Avoid folding to prevent creases during storage; hang on a hanger instead
• When storing, lightly dust the rubber surface with baby powder to prevent the material from sticking together

Conclusion

For open water swimming or triathlon in Taiwan, a suitable wetsuit is not just a warming tool—it is competitive gear that enhances your speed. Before your first purchase, we recommend carefully reviewing brand size guides and trying on wetsuits whenever possible to confirm the mobility suits your swimming stroke. A good wetsuit can accompany you through multiple seasons, and proper care is the key to ensuring your investment pays off.

Related Reading

• Wetsuit Selection and Dressing/Undressing: The Complete Essential Gear Guide for Open Water
• Wetsuit Buying Guide: Thickness, Buoyancy, and Mobility for Triathlon Wetsuits
• The Complete Wetsuit Guide: Selection, Dressing/Undressing, and Adjusting Your Swimming Feel
• Open Water Temperature Strategy: Wetsuit Selection for 14–25°C