Arva Bivvy Lite Condition:New With a generous 102mm last—expandable

With a generous 102mm last—expandable up to 108mm—plus a plush My Custom Fit 3D liner

Its breathable poly-blend fabric fits easily under a helmet and offers full ear coverage to keep you dry

The Patagonia Men’s R1 Air Fleece Zip-Neck combines lightweight warmth with exceptional breathability

and all-day comfort for cold-weather adventures

from those first days on snow to a full season of getting better and better

Arva Bivvy Lite Condition:New With a generous 102mm last—expandableThe Arva Bivvy Lite is a minimalists answer to cold, clammy nights in the mountains, pairing breathable fabric with heat reflective technology that bounces back up to 70% of your body warmth. Designed to eliminate the condensation issues common in traditional bivy sacks, it keeps you dry, warm, and ready for whatever the forecast delivers. Ultralight yet highly functional, it doubles as an overbag or standalone summer shelter, and even includes a