Cliff Keen Fox 40 Finger Whistle Oofus 100% polyester 2-ply fabric with

100% polyester 2-ply fabric with high mechanical stretch

The slip-on moc has double gore panels that flex for ease of sliding on yet conform comfortably to the foot without the need for laces

eliminating slippage & providing ideal underfoot comfort

Built for weekends

a perfect fit

Cliff Keen Fox 40 Finger Whistle Oofus 100% polyester 2-ply fabric withDESCRIPTIONThe Fox 40 Classic Fingergrip is for referees and coaches at all levels who want every call to be heard. The Fingergrip model has adjustable fingergrip that fits securely and comfortably over a grouping of multiple fingersFEATURES No moving parts to freeze, jam or deteriorate Flawless, consistent and reliable The harder you blow, the louder the sound Chambers are designed to self clear when submerged in water Will be heard above ambient