Aequilibrium Lite Insulation Jacket Women's

$156.75 ~~$209~~ In stock

The Aequilibrium Lite Insulation Jacket is designed for swift starts and technical climbs, offering optimal warmth-to-weight ratio and freedom of movement. It combines Pertex® Quantum and Polartec® Power Grid™ fabrics for breathability and warmth, and features harness-compatible pockets and a hood that can be worn over your helmet for practicality on the wall.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Julian ★★★★★ Oct 21, 2026

The Pertex fabric on this jacket feels surprisingly durable for how light it is. I wore it for a chilly morning scramble and never once felt restricted reaching for holds. It packs down small enough to stuff in my climbing pack without adding noticeable bulk.

Natalie ★★★★★ Oct 20, 2026

I was skeptical about the warmth-to-weight ratio until I wore it on a frosty pre-dawn hike—this thing packs down tiny but kept me comfortable without any bulk. The Pertex fabric feels surprisingly durable for how light it is, and the freedom of movement climbing was exactly what I needed.

Michael ★★★★★ Oct 19, 2026

Climbing up the approach trail this morning, I barely broke a sweat despite the brisk wind. The Pertex® Quantum fabric cuts the chill beautifully without feeling stuffy, and the freedom of movement through the shoulders is exactly what I need for technical moves.