- Thermal Fusion
- • Overview
- • Design
- • Science
- • Size Chart
- • Photo Gallery

EN14058:2004
Thermal Fusion Undergarment




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Thermal Fusion, a high performance diving undergarment, maximizes warmth, and provides unrivaled flexibility and fit.
Designed by divers, the Thermal Fusion was rigorously tested by professionals to ensure the highest level of comfort and warmth.
Proven by science, independent laboratory tests by the Sport Innovation Center (SPIN) validate the superior insulation value of the Thermal Fusion. Cold water immersion and controlled cold weather environmental tests determined effectiveness in protecting skin and core temperatures. Comparative testing against our competitor’s top rated undergarment confirms superiority. The science proves that the Thermal Fusion performed best overall in preventing heat loss in extreme environments.
DESIGNED BY DIVERS PROVEN BY SCIENCE
Features
- Thermal Fusion is great for use with all dry suits.
- Integrated pockets.
- Easy access comfort zip with P-Valve compatibility.
- Compression Skin encapsulates the inner Thermal Core, delivering extreme mobility and superior warmth.
- Whites ATS (Air Transfer System) facilitates the effective transport of air throughout the Thermal Fusion allowing effortless Dry Suit venting.
- Strategically placed 3D Hi-Flo Mesh Panels located at the inflate and exhaust valve locations increases airflow, padding and insulation.
- Thermal performance independently lab tested by Sport Innovation Center (SPIN).
- Thumb loops for easy donning.
- Stirrups keep garment in place when donning.
Construction
- Polartec 200 fleece core with an outer power stretch compression skin.
- Non-corroding YKK zippers throughout.
- 3D Hi-Flo Mesh Panels.
Materials
- Power Stretch Pro outer skin
- Polartec 200 fleece core
- Machine washable.
sizes and Part Numbers
Size |
2XS/XS |
S/M |
L/XL |
2XL/3XL |
4XL+ |
Part No. |
612082 |
612083 |
612084 |
612085 |
612086 |



THERMAL FUSION
The Thermal Core
Patent pending Thermal Core Technology is a unique, dual layer design, that allows the diver an unlimited range of motion, with a streamlined fit.
The first layer, a loose cut thermal core constructed of Polartec 200 fleece, fits a wide size range and does not restrict mobility.
The second, outer layer, is a Polartec Power Stretch Pro compression skin which streamlines the inner core to the divers body, provides a custom fit, and allows maximum range of motion.
The Polartec Power Stretch Pro compression skin, combined with Whites unique ATS (Air Transfer System) minimizes buoyancy, while allowing incredibly efficient air venting out of the suit.
Thermal Core Technology is at the heart of the thermal Fusion, resulting in an undergarment that is unmatched in flexibility, fit and warmth.



Thermal Fusion
The Science
Proven by science, independent laboratory tests by the Sport Innovation Center (SPIN) validate the superior insulation value of the Thermal Fusion. Cold water immersion and controlled cold weather environmental tests determined effectiveness in protecting skin and core temperatures. Comparative testing against our competitor’s top rated undergarment confirms superiority. The science proves that the Thermal Fusion performed best overall in preventing heat loss in extreme environments.
The Sport Innovation Center (SPIN) collaborates with Olympic and Paralympics athletes, combining leading-edge technology, and applied research to address various team and individual needs at the highest level of training and competition. A key area of SPIN focus is on product testing and prototype development. Access to high performance Olympic athletes, as well as world-leading sports scientists, provides SPIN with the ability to establish and build connections between ideas generated from basic sport research, the athletic performance community, and the product development business. New textile and sensor technology developed through the SPIN Centre has positioned SPIN as a break-through leader in sport technology development throughout Canada, and around the world.
Thermal Fusion
Size Chart
Unisex Size Chart | 2XS/XS | S/M | L/XL | 2XL/3XL | 4XL+ |
Height | 5’1” - 5’5” | 5’5” - 5’9” | 5’9” - 6’1” | 6’0” - 6’4” | 6’0” - 6’10” |
Weight | 90 - 130lbs | 120 - 170lbs | 160 - 210lbs | 200 - 250lbs | 230 - 350lbs |
Chest | 30” - 37” | 35” - 41” | 39” - 45” | 43” - 49” | 45” - 58” |
Waist | 22” - 31” | 27” - 36” | 31” - 40” | 35” - 44” | 41” - 58” |
Buttocks | 27” - 36” | 32” - 41” | 36” - 45” | 40” - 49” | 46” - 58” |
Crotch To Floor | 26” - 29” | 29” - 32” | 30” - 33” | 32” - 35” | 33” - 38” |