Simms - M4 BOA Field Repair Kit Double Bubble Egg Backing Capacity Hatch Premium Backing:

Backing Capacity    Hatch Premium Backing: LA WF5F-120Y

The compact cutting surface easily clips light or heavy leader

a hard anodized saltwater deluxe pedestal base (C4016)

and hooks from size 16 to 1/0

Anchor has a wider fluke angle to grip the bottom more aggressively

Simms - M4 BOA Field Repair Kit Double Bubble Egg Backing Capacity Hatch Premium Backing:Includes M4 replacement dial, stainless steel wire lace, lace lock and flat head screw driver for easy lace system replacement in the field. For use with our G3 Guide BOA Vibram and felt. To verify which Lace Length you need look inside the boot on the tongue label where the size is marked. Previous Guide Boa, Headwaters BOA and RiverTek BOA Boot in Vibram and felt order M2 BOA Field Repair Kit. For 1st generation RiverTek BOA wading boots, order M3