The Burton ak Cyclic jacket wraps a full GORE-TEX 2L shell around a Rider Wrapped Fit built to move through technical terrain rather than just stand up to weather. Without added insulation, the articulated patterning stays free through reaches and twists that a bulkier jacket would fight, so the shell layers easily under anything the forecast demands. What Our Gearhead(R) Experts Are Saying:"I wore this scrambling over rocks to drop into a chute, and the shell never bunched at the shoulders or pulled across the back reaching for a handhold. Crossflow Venting kept me from cooking on the traverse in, so I never had to stop and shed a layer."