The Military OPS SF is the next generation of the Altberg Defender and Warrior boots, the original high liability lightweight combat boots.MaterialsUpper - 2.4mm full grain Anfibio® water-repellent leather (foot and heel) & 1.8mm soft supple full grain water-repellent leather (leg and tongue)Lining - Forefoot: spacer mesh, maximum breathability and zero moisture retention & Heel: Cambrelle® breathable, absorbent, for all day comfortMidsole - Tri-Flex® 2-3 season, good flex control and torsional resistance, graded individually for each sizeSole - Defender Hi-Traction Sole - excellent up-hill traction and downhill braking.FeaturesHeight: 21.5cms (size 9 including heel)Width: AForme - slightly wider forefoot, spring at toe and narrow heel and waist.A closer lookThe Military Ops boot was developed during 2018/2019 as an update to the defender. The result is a close fitting boot with improved mobility for running and tabbing, stronger lateral support also improves ankle security on rough terrain. Many of the materials used in Altbergs original Defender boots are retained, so breathability, drying time, shock absorption and weight are as good, and in most cases better. 2023 has seen an update to the design where the lacehooks on the upper have been replaced with closed loopsPlease note: There has been a rolling change of sole units from the Vibram Masai sole unit to the defender sole unit which is superior in slip resistance and traction, plus it is acid and oil resistant. Also the move from lace hooks to eyelets is ongoingAt present our stock is mixed as only certain sizes are coming into the warehouse from Altberg with the new updatesIf you require a particular version, please phone or email customer services or one of our stores for help. Altberg Mens Military OPS SF Boot - MOD Brown