The Explorer ¼ Zip
The ultimate active layer
Our award-winning, do-it-all layer, back and better than ever before.
NASA science keeps you warm on Earth.
Solarcore is space-age tech, the same material NASA used to insulate the space shuttles in the -455 F vacuum of space, insulating you on Earth. It has been tested against more than 250 other insulations — every goose down and synthetic out there — and we’ve yet to ﬁnd something that is warmer.
MAINTAINS WARMTH UNDER COMPRESSION