Throw a pair of these men's Tundra Aerogel booties from Outdoor Research into your pack to turn any adventure into a luxurious experience—without the extra weight.

Features:

• VerticalX insulation offers a superior warmth-to-weight ratio that works even when wet
• Compression-resistant PrimaLoft Aerogel inserts act as thermal barriers between your feet and the elements
• Weather-resistant exterior shells help fend off the elements
• Grippy soles provide traction on snow and ice

Specifications:

• Step Down Heel
• Slip-on
• 100% polyester shell
• 100% polyester VerticalX
• PrimaLoft Aerogel 1.5mm insert
• 7.1 ounces