The Ultra series is lightweight and compact, intended for fast-paced, human-powered activities like hiking, backpacking, and mountaineering. It balances low weight and packability with effective insulation. 

• SynmatPlus Technology: Improved thermal efficiency for extreme cold environments without increasing weight.
• Thicker design for better comfort while maintaining a lightweight profile.
• Updated to sustainable insulation materials to enhance environmental responsibility & market competitiveness.