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The New Ti Shield 3.3 Zipfree Hooded is the result of the reimagined Shield. Ideal for cold-water sessions, like the Santa Cruz California winter, we infused it with our premium heat technology:
We pulled down from our extreme cold water Alpha Series the Yamamoto Titanium Coating and plush Yellow Z-Fleece lining, along with the addition of our KOREgulator kidney panel providing an extra layer of insulation to keep your core warm and you surfing longer.
This new addition was tested by Pete Mel himself and some of our most critical test pilots - the results were stunning.
This innovative combination has successfully boosted the suit's warmth to 4mm+ levels, completely eliminating the need for a bulky, traditional 4.3mm. You'll move more easily, paddle further, and stay comfortable in the water.
This will no doubt be your new cold-water favorite. Unmatched warmth and flexibility in this low-40°’s to low 50°’s water temperature range.
Straight from the source:
“I’ve been running the new Isurus 3.3 Ti Shield with the KOREgulator, and I’m seriously impressed. The KOREgulator tech keeps your body temperature locked in without feeling restricted — it’s that perfect balance of warmth and flexibility. You can stay out longer, push harder, and still feel fresh. This suit performs exactly how you want it to when conditions get real.” — Peter Mel.

The main ingredient is Japanese limestone, which is advantageous in environmental and quality aspects.

Oxidation-resistant plant oil is friendly to people and the Earth. It makes rubber soft and flexible.

Technologies enhance your performance.
1. Freshwater Rinse After Every Session
2. Dry Your Wetsuit in the Shade
3. Hang Up Your Wetsuit Correctly
4. Do Use an Occasional Wetsuit Shampoo
5. Take Care When Taking off Your Wetsuit
World Surf League Orthopedic Surgeon
Newport Beach, CA, September 6, 2019
I've been fortunate enough to have used a lot of wetsuits. Beginning with the O'neill beavertail through the stiff fullsuits of the late 20th century, up to the present time. Many suits have their gimmicks: quick dry, neck gators, tight wrist and ankle cuffs, but they're still the same ill-fitting, moderately flexible suit.
Then a quantum leap occurred.
Isurus created a surgical glove
It's also exceptionally warm, with the flexibility in the shoulder and hips where it's needed.
As the Orthopedic Surgeon for the ASP/WSL for the last 25 years, I've seen a multitude of injuries from tight, poor fitting suits. The cut and stitch pattern is superb to allow exceptional flexibility through the shoulders. This decreases the risk of impingement syndrome and rotator cuff damage. The zipper less entry and exit is also very flexible around the shoulder which also decreases the risk of rotator cuff or labral damage.
I have also experienced myself the low back stiffness that occurs with a poorly fit wetsuit that allows low back chill. Even though the Shield is only a 2/2, the stitch and paneling is done to maximize fit with optimal warmth to the low back area.
Spend a little bit more on this fabulous suit rather than in my office with your shoulder pain. Buying quality never goes out of style. I rarely give testimonials, but I believe in Isurus wetsuits.
I don’t do surgery in garden gloves.
You shouldn’t surf in a suboptimal wetsuit

At Isurus, our passion is to build world-class wetsuits that stand up to the harshest conditions the ocean might offer.
Living and surfing in and along the California coast, a frequent topic of conversation was just how much wetsuit innovation had stagnated and quality had deteriorated. It is about designing a wetsuit that improves surfer performance. Click for more about Isurus wetsuits.