PureFlex Lacing System
The fastest lacing system in the SDS boot line—tightening the boot evenly from inside to out without tangled laces or tying knots. Pull → Cross → Hook → Tuck → & Ride. Easily said and easily done with a natural flex and feel. Provides speed lacing control over four zones, and is the only system to lace your inner cuff and outer shell in the same pull.