Save it for a rainy day. This water-repellent jacket packs into itself and fits into your bag so it's always on hand when the weather changes.
Packable Water-Repellent Jacket
Lululemon Warp Light Packable Jacket - Great For Trailrunning, Cycling, And Everything Else
Reversible Drape-Sleeve Jacket - Resale
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lululemon athletica, Jackets & Coats, Lululemon Define Jacket Brand New Without Tags
Lululemon Lightweight Insulated Hiking Jacket - Black - lulu fanatics
Packable Hiking Jackets
Stretch Packable Hiking Jacket *Online Only
Stretch Packable Hiking Jacket - Resale