Smartwool Men's Active Ultralite Short Sleeve Size:L Torsion-Proofed Body The well-thought-out (in

Torsion-Proofed Body The well-thought-out (in all details) housing construction with broad contact surface and torsionally stiff geometry is the basis for direct power transfer

Built off the Speedgoat 5 GTX’s blueprints

With a clever

Double-wall vacuum insulation

The HRS strap keeps your heel planted where it should be to increase performance and comfort on the way up and down while the lower Wave Closure system provides the same security as a 2-buckle system at a fraction of the weight

Smartwool Men's Active Ultralite Short Sleeve Size:L Torsion-Proofed Body The well-thought-out (in### Smartwool Says ### Simple but practical, our Men's Sport Ultralite Short Sleeve tee is soft yet functional, for all day comfort and utility. Its super light performance fabric a blend of ZQ certified Merino wool with TENCEL Lyocell fibers, this performance fabric will help keep you cool when your intensity amps up, and its design helps minimize chafing. Plus, it's odor resistant, breathable, and temperature regulating, all helpful features when