Made for endurance, comfort, and maximum in-river stability; with the exacting adjustability of the BOAA(R) fit system, the G3 Guide(TM) BOA Boot - Felt is the grippy standard worn by far-ranging guides and anglers who live to get it done. Product Features: BOAA(R) Fit System with an improved M4 dial Built with a traditional work-boot construction for near permanence in an angler&';s wading kit Durable and high abrasion resistant leather, synthetic woven, and rubber upper materials. Traditional goodyear welt construction for stability and durability Simms 10mm felt outsole