8 products
THERMAL FLEX
ACTIVE THERMAL WATERWEAR
All the freedom of a rashie — with warmth that keeps you in the water longer.
From the creators of Technical Waterwear, Sharkskin Thermal Flex introduces the next evolution in performance water clothing — delivering warmth, freedom of movement and ultra-fast drying comfort without the bulk and restriction of neoprene.
BUILT ON A LEGEND. CREATED FOR WHAT CAME NEXT.
Sharkskin’s legendary Chillproof and T2 ranges helped reinvent thermal protection in the water, giving divers and watersports users a high-performance alternative to traditional neoprene wetsuits.
For warm tropical diving and active water sports like swimming and surfing we had a new request.
Could we create something even lighter?
Divers wanted protection in warm water without overheating.
Swimmers and surfers wanted warmth without restriction.
Athletes wanted a firm, body-hugging layer that moved naturally and dried quickly between sessions while providing insulation.
So Sharkskin developed something entirely new that used technology rather than bulk.
Thermal Flex — Active Thermal Waterwear.
A lighter, faster, high-performance fabric built for warmer waters and high-movement sports where flexibility, comfort and performance matter most.
It keeps the freedom of rash wear, significant real warmth, and removes the bulk and drag of neoprene.
FROM TECHNICAL WATERWEAR TO ACTIVE THERMAL WATERWEAR
Sharkskin pioneered Technical Water wear, redefining how water sports athletes stay warm without relying solely on neoprene.
Now performance evolves again.
Thermal Flex introduces Active Thermal Waterwear, engineered for those who demand genuine warmth without compromising movement, speed, or comfort.
Traditional rash wear protects from the sun but provides minimal insulation. Wetsuits deliver warmth but introduce thickness, buoyancy and drag.
Thermal Flex bridges the gap.
Its performance comes not from a single feature, but from a combination of advanced fabric upgrades working together:
• Ultra-high-density Lycra construction increases insulation while maintaining exceptional stretch.
• Durable Water Repellency is applied to individual fibres rather than just surface coatings, so the fabric absorbs less water and dries faster.
• Titanium nanoparticle infusion generates Far Infrared (FIR) energy to assist thermoregulation and muscle performance.
The result is a garment that stays lighter in the water, glides more efficiently, and dries rapidly between sessions while dramatically reducing wind chill once out of the water.
The feel is premium swimwear. The warmth approaches a light 1–1.5mm wetsuit top. The freedom is unmatched.
Thermal Flex isn’t a wetsuit replacement — it’s a new category in water performance!
ACTIVE THERMAL WATERWEAR TECHNOLOGY
• Hydrophobic High-Density Fabric – Increased Lycra density improves insulation while fibres resist water absorption, helping garments stay lighter and dry extremely fast.
• Reduced Drag & Smooth Glide – Hydrophobic fibre treatment reduces surface friction for more efficient movement through the water.
• FIR Performance Technology – Titanium-infused fibres reflect Far Infrared energy back to the body to assist thermoregulation and muscle recovery.
• Warmth Without Bulk – Significantly warmer than rash wear while remaining thin, light and unrestricted.
• Complete Freedom of Movement – Ultra-stretch compression fabric moves naturally with your body.
• Wind Chill Protection – Reduces heat loss when exposed to wind while wet.
• UPF50+ Sun Protection – Protection for long days outdoors.
• Chafe-Free Comfort – Ergonomic construction eliminates irritation during long sessions.
PRIMARY USES
• Warm water diving & snorkelling
• Surfing, foiling & paddle sports
• Ocean swimming & training
• Spearfishing in mild conditions
• Sailing & boating
• Travel & tropical watersports
• Layering under wetsuits or drysuits
• Cool mornings or windy sessions
• Long days in and out of the water