Peak UK Harness The neatest chest harness on the market: Set desired webbing length in the cam buckle, accomodate any slack using the tri-glide.  Chest harness for Peak UK River Guide, River Wrap & Rescue Wrap PFDs. Peak UK Harness is also compatible with most PFDs. Features: Meets ISO 12402-6 standards Tough 38mm webbing ITW quick release buckle with easy pull yellow toggle Marine grade stainless steel under plate, for holding big loads Triglide slider allows for full length adjustment