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Icebug Sisu

The BOA® Fit System delivers micro-adjustable precision fit, engineered to perform in the toughest conditions on the Icebug Sisu trail running shoe with L6.

The Sisu delivers the added benefit of increased speed and improved ankle stability. 

Dial And Lace Specs

L6

L6 is the most widely used dial in the L-SERIES thanks to its versatile cartridge system. Designed to keep you going.

  • Push in to engage
  • Turn to tighten
  • Pull up for fast release

TX4

Flexible, lightweight, and strong, the TX4 textile lace provides a soft feel with the lasting strength of Dyneema®.

How the boa fit system works

Precision Fit + Quick Release

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