The La Sportiva Opry Stretch Insulated Jacket is an insulated climbing jacket with no-sew chambers filled with Comfortemp Fiberball, clusters of extra-fine recycled PET fibers. The chambers carry plenty of stretch and articulation, which lets the jacket follow the climber through each move on the coldest days. What Our Gearhead(R) Experts Are Saying:"I reach overhead mid-climb and the hem and cuffs stay put, because both are elastic. The hand pockets work with my harness on, so I can get to my phone without taking anything off."