K4 is a soft hybrid plastic that sits between base and premium

Large zipper pocket to store valuables

STRAIGHTER AND GLIDIER

The start of the mix has been the same brand plastics used in Opto Line but we added a different polymer to give it better grip without losing the excellent durability of Opto Line

a Lots is a predictable line-holder

EXPLORER OPTO Fuse K4 is a soft hybridSpeed: 7 Glide: 5 Turn: 0 Fade: 2 Why was the Explorer voted the 2018 Disc of the Year? Straight flight path and controlled glide, thats what the Explorer brings. Designed to be the workhorse for all kinds of accurate fairway drives. This stable and versatile fairway driver is smooth out of the hand and has a clean stable flight. Opto is made out of some of the world's most durable plastics. It comes in a variety of beautiful translucent colors. The