BasePro 1/4
The BasePro 1/4 Zip brings precision temperature control to your cold-weather layering system. Engineered with AERIS™ 250 insulated, 4-way stretch fabric, this piece regulates core warmth while allowing full freedom of movement. The 1/4 zip adds easy venting for high-output activities or changing conditions. Moisture-wicking and antimicrobial, it keeps you dry, warm, and fresh even in tough environments.
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Replaces 2–4 traditional layers – Ditch the bulk
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Adaptive ventilation – Zip down for cooling, up for warmth
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Versatile single layer – Wear solo or under your favorite shell
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BasePro 1/4 Zip (TRUE TO SIZE)
Male: Order your normal size for a regular fit
Example: 6'2", 225lbs, wearing XL.
Female: Order one size smaller than your usual size for the best fit.
Example: 5'7", 130lbs, wearing Small.
Warm when wet – insulation retains heat even in rain or sweat
Lightweight warmth – high warmth-to-weight ratio without bulk
Breathable system – reduces overheating during activity
Durable construction – built for rugged use
Layer-reducing design – replaces bulky layering systems
Quick-drying – unlike down, no long dry times
Buy it with
Key Features
built with USA-made, patented insulation tested for over 16 years in real-world environments. It delivers consistent warmth even when wet, lightweight performance without bulk, and breathable comfort during activity.
Made to perform when it matters most, we offer quality that you can count on. Tested and proven to deliver consistent results, it's made for everyday use and beyond.
Wind & water resistant shells – protection from harsh elements4-way stretch fabrics – full mobility for work or outdoors
IN the wild
