Pelagic 1230 Sock Perform Sock Sonar Black BLK Size Free (9513)Black performance sock with integrated sonar sensor pocket. Moisture wicking merino wool blend with reinforced heel and toe. Fits standard wading boot sizes. Designed for anglers who need to keep their sonar device secure and accessible while wading. Reinforced stitching for durability in wet conditions. TARGET USE: Wading anglers using sonar devices