Featuring a 10mm EVA insole designed to take up extra space when wading or fishing warm water flats. Small perforations in the EVA promote quick water drainage and faster dry times. A perfect compliment when paired with Korkers I-Drain Socks for ultimate comfort on hot days. SPECS // 10mm EVA perforated insole with trim to fit guidelines for proper fit. SIZES // S (5-9), M (10-12), L (13-15) TRIM TO FIT // Designed to work with any boot, includes easy-to-use trim to fit guidelines for proper fit.