5 your luna size will be men's 10

THE INCLUSION OF THE ROC LOC SYSTEM FOR A DIALED-IN FIT

Chambers are designed to self-clear when submerged in water

VENTILATION WIND TUNNEL VENTS WITH INTERNAL CHANNELING

Rubber compound suitable for indoor/outdoor

Fox 40 Classic Cushioned Mouth Grip Official Whistle Flexibility_Less 5 your luna size willThe fox 40 mini cmg is a more compact version of the fox 40 classic cmg with a smaller mouthpiece No Moving Parts to Freeze, Jam or Deteriorate Produces a high pitched, ultra shrill tone 3 chamber pealess design with cushioned mouth grip (cmg) Lanyard purchased separately Color: black Package contents: 1 x classic cmg whistle