Why buy from Extreme Watersport
- Perfect Wetsuit Underlayer
- Windproof & Water Repellent
- UV 50+ Sun Protection

Product overview
The Enth Degree Tundra Men's Long Sleeve Thermal Top is a versatile performance garment designed for men who demand warmth, flexibility and protection across a wide range of watersports. Tested extensively across scuba diving, kayaking, SUP and kite surfing, the Tundra delivers exceptional thermal performance both in and out of the water.
At the heart of the Tundra is Enth Degree's advanced 385gsm Fernotherm3 thermal fabric, providing excellent warmth and anti-wind chill protection without the bulk of traditional neoprene. The windproof breathable PU membrane shields against cold surface conditions, while the soft moisture-wicking fleece lining keeps you comfortable during extended sessions.
The four-way stretch panels and male-specific performance cut allow unrestricted movement, making the Tundra equally suitable as a standalone thermal watersports top or as an underlayer beneath a wetsuit. The high-stretch neoprene neck and comfort neck seal improve warmth and comfort, while practical features such as the quick-adjust waist system and board short connection loop enhance functionality.
Additional details including UV 50+ sun protection, reflective graphics and the distinctive silver back design complete one of Enth Degree's most versatile thermal garments for active watersports enthusiasts.
Whether worn beneath a wetsuit or on its own, the Tundra delivers lightweight warmth and technical performance for every adventure on the water.
Service and support
Technical construction
Specifications
Product help
Talk to the Extreme Watersport team for fit, warmth and cold-water diving advice.