Regulates temperature during high-output activities to reduce overheating.
I-1049
Batting
Gold Active Vent Insulation
Maximum breathability meets lightweight warmth for high-output adventures.
PrimaLoft® Active Series
I-2056
ThermaStretch™ Insulation
Insulation that moves with you and keeps you warm through every stride, climb, and turn.
Advanced Stretch
Breathable
Lightweight
Warm without Weight
Overview
Advanced stretch that moves with you
Whether you're running a trail, climbing a route, or pushing through a cold morning ride, your insulation should never hold you back.
ThermaStretch™ stretches with your body, moving with you naturally while delivering lightweight warmth and breathable comfort. With 30% more stretch, it offers greater freedom of movement for dynamic activities. The result is insulation that works with your movement, not against it, so you can stay focused on the activity ahead.
ThermaStretch™ is produced using PrimaLoft P.U.R.E.® manufacturing technology, which reduces carbon emissions by 50% or greater compared to traditional manufacturing methods.
Key Features
Built to move with you and designed to keep you comfortable.
Breathable
From the field
"The garment was very flexible, lightweight, and very effective holding in warmth without overheating with sweat."
Bri Dostie
Fly Fishing Guide and PrimaLoft® Wear Tester
All features
An insulation that moves with you.
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