LONG-DAY PERFORMANCE: Built for 8–12 mile ruck movements and long shifts on your feet. Stable arch platform + shock-absorbing heel reduces fatigue so you can finish strong and stay ahead. FIELD-READY DURABILITY: Military-inspired design built to hold its shape under weight, day after day. Removable and hand-washable so you can reset them after muddy ranges, motor pool days, or job sites. FOOT PAIN RELIEF & BLISTER DEFENSE: PU comfort foam over PORON impact zones cushions every step while the smooth, low-friction top layer cuts down hotspots and rubbing—helping keep blisters and foot pain in check on long walks and rucks. BOOT FIT: Low-profile design fits standard issue military boots and popular work boots without crowding your toes. Anti-slip base locks the insole in place so it won’t bunch or slide under load. ZERO-RISK TO YOU– Put these through your next ruck, field-op, or 12-hour detail. If you don’t feel a real difference, I'll make it right. No hard feelings. When you live in these boots, cheap and standard insoles aren't just costing you injuries, but also your performance. FieldBorn insoles were built for those 09-1700 details, long motor pool days, and field operations. Built by an infantryman who couldn't stand by and watch his battle buddies fall out because of foot fatigue, blisters, and collapsed foot arches. With FB-01, you've got no excuses left. Whether you’re standing on concrete all day, walking post, or grinding through the field, FB-01 insoles give you the comfort and support you need to stay one step ahead.