K9R - M1 Lightspeed Harness for Large Dogs MADE IN USA - LIFETIME WARRANTY If you're running a working K9 or covering serious ground on the trail, you need gear that keeps up, not gear that weighs you down or gets in the way. The M1 Lightspeed Harness for Large Dogs is built exactly for that — hand-built in-house, using a laser-cut process to shape our most minimal, low-profile pattern, scaled up for large breeds. That combination of extreme lightness, durability, and airflow — rugged enough for hard, rough use — has made the M1 Large a trusted choice among professional handlers, trainers, and active large-dog owners who need dependable performance in every environment. Keep your dog cool and comfortable — the chest is built minimal since that's where dogs need cooling most. Industrial-strength side buckles and metal locking hardware at the neck keep this harness secure even with strong, aggressive pullers, making it a great fit for daily walks, adventure days, and working shifts alike. Have a smaller dog? Check out our M1 Lightspeed Harness, the same minimal, lightweight design built for small-to-medium breeds. Want to customize with gear on the sides for work or adventure? Check out our M4 Tactical MOLLE Harness — it comes with laser-cut MOLLE side panels built right in for attachment options, for dogs in the 30–60 lb range. FEATURES Tailored, Not One-Size-Fits-All — Precision-engineered fit built specifically for large breeds Minimal, Low-Profile Design — Laser-cut to eliminate bulk (not padded on), for our most breathable harness Five-Point Adjustment System — Precise fit for large dogs of all builds, with room for big, broad chests Industrial-Strength Side-Release Buckles — Rated for high break strength, positioned on the sides for quick on/off Metal Locking Buckles at the Neck — Keep webbing from slipping loose during hard pulls from strong or aggressive dogs Three Leash Attachment Points — Welded metal D-rings front and rear (rear ideal for long-line work), plus a laser-cut chest hole for no-pull use Reinforced Rear Grab Handle — High-strength tubular nylon webbing for confident control when you need it most Extremely Lightweight, Extremely Durable — Laser-cut laminated Cordura nylon, military-grade webbing and welded metal hardware Double-Reinforced Construction — Main body and chest plate are double-layered with laminated Cordura nylon for extra strength Reinforced Stitching Throughout — Military-grade nylon thread reinforces every potential failure point Easy to Clean — Unlike padded harnesses, it won't absorb water, so it dries fast and won't hold onto smells the way padding does — just wipe and brush clean Personalize It — Loop panels for name tapes, ID badges, and morale patches Made in USA — Backed by our lifetime warranty Morale Patches Sold Separately SIZING Size Chest Neck Length Suggested Weight Large 26"–36" (66–91cm) 22"–30" (56–76cm) 9" (23cm) 50–120 lb (22.7–54.4kg) X-Large Coming Soon Coming Soon TBD TBD Use either your dog's weight or chest measurement to find the right fit. Loop panel dimensions (for name tapes and morale patches): Size Loop Panel — Back Loop Panel — Chest Large 4" x 6.5" (10.2 x 16.5cm) 3" x 4" (7.6 x 10.2cm)
