Size S: Chest 23–28.5",Neck/Head 20"(non-adjustable), Strap Width 1.5".Pro Tip:Use a soft tape to measure your dog's chest,neck and head circumference.This is an overhead/step-in style harness.If your dog has a large head or broad neck, its unsuitable Built to Last-Premium Durable Materials: Features a double-layer nylon webbing inner lining for strength and a soft flannel outer layer for comfort.Ideal for high-intensity training, hunting or outdoor adventures Comfortable and Control-Evenly Distributed Pressure: The saddle-style design spreads pressure evenly during pulling or weight training. Three rust-proof alloy D-rings provide secure attachment points for leashes or training lines Double Leashes Included-Ready for Action: Comes with two heavy duty elastic nylon leashes rated up to 500 lbs. Includes 4 detachable alloy locks for secure towing and training,not easily to break Trusted by Dog Owners-Ideal for Active Lifestyles: Forestpaw tactical dog harness is perfect for training, hiking,sledding or everyday walks.Two leashes give you better control—making it a top choice for serious dog trainers and outdoor enthusiasts
Forestpaw Heavy Duty Dog Vest Harness – The Ultimate Training Sled Harness for Medium to Large Dogs

To ensure a perfect fit, please measure your dog's chest (around the widest part behind the front legs) and neck circumference and head circumference. Compare with the chart below:

Size S: Chest 23-28.5"(58-73cm);Neck 20"(51cm);Width 1.5"(4cm);Weight 2.3lb(1048g)

Size M: Chest 25-31.5"(63-80cm);Neck 20"(51cm);Width 2.0"(5cm);Weight 2.5lb(1148g)

Leash length: 4ft(120cm)

Keyword Features:

Well constructed---The sled harness is made of durable nylon fabric with cotton inside,comfortable and heavy duty.

All stitching lines are strengthened

Package Includes:

Forestpaw Dog Harness*1

Leash*2

Suitable for hiking,skiing,training or other outdoor activity.

Strong enough for medium large sized dogs,such as labrador retrievers,golden retrievers,Schnauzer,Belgian Shepherd,Malinois,Rottweiler,Mastiff,Border Collie.