Outdoor Research Tundra Aerogel GORE-TEX® INFINIUM™ Balaclava

The Tundra Aerogel Balaclava celebrates the insulation trusted and tested by NASA with PrimaLoft® Aerogel: The world's - and as far as we know, space's - most reliable warmth. A polyester crown, windproof construction, and strategically placed Aerogel insulation add durable warmth where you're most susceptible to frostbite; along the cheeks, over the nose, and under your eyes. Over-the-mouth neoprene blocks wind while providing stretch and insulation, and venting around the mouth allows condensation to escape so your goggles won't fog up.

HATS SIZE GUIDE

HATS

Measurement shown in: IN

UNISEX	S	M	L	XL
US HAT SIZE	6¾” – 7”	7⅛” – 7¼”	7⅜” – 7½”	7⅝” – 7⅞”
CIRCUM	21½” – 22”	22¼” – 22⅞”	23” – 23⅝”	23⅞” – 24”
	–	1 SIZE	S/M	L/XL
US HAT SIZE	–	6¾” – 7⅝”	6¾” – 7¼”	7⅜” – 7⅝”
CIRCUM	–	21½” – 24”	21½” – 22⅞”	23” – 24”

HOW TO MEASURE

Measure around your head where the headwear would fit comfortably.

Final Sale: Sorry, we do not accept returns or exchanges on masks, neck gaiters, or face coverings.