Arcteryx Beta Jacket Arcteryx Cerium Hoody The Arcteryx Proton Hoody is

The Arcteryx Proton Hoody is a super light insulating mid or outer layer designed for spring and summer conditions when you may need a little extra warmth

Helmet compatible StormHood

To solve the traditional fragility of wool

Don't worry your GORE-TEX ePE jacket is still waterproof

Arcteryx Beta Jacket Arcteryx Cerium Hoody The Arcteryx Proton Hoody isThe Arcteryx Beta Jacket is a GORE TEX ePE waterproof and breathable jacket that is at home both in the mountains and around town. The Beta features a 80 denier recycled Nylon outer that is durable enough for every day use and light and packable enough to go in your hiking pack for spring and summer hikes. A soft feel GORE TEX C KNIT inside is comfortable even over just a T shirt and prevents the clammy feeling that other membranes can get in warmer