Big Agnes Copper Spur HV UL 4 Person Tent Grayl SimpleVent™ Drink Cap performs three

SimpleVent™ Drink Cap performs three functions:

rechargeable via the type B micro USB port

a grippy-but-not-sticky filter cartridge over mold

» Graded Sizing™ provides a better

Big Agnes Copper Spur HV UL 4 Person Tent Grayl SimpleVent™ Drink Cap performs threeTHREE SEASON, FREE STANDING, ULTRALIGHT TENTS Already one of our best selling, full featured, ultralight backpacking tents, the Copper Spur HV UL series just got better. Redesigned with new features inside and out, using proprietary materials that are lighter, stronger, and equipped with hardware that makes set up even easier. The high volume design provides ample living space in this freestanding structure. Traditional, media, and 3D bin pockets help