Durable construction: Made from high-quality Oxford fabric for strength, abrasion resistance, and long-term reliability during repeated indoor and outdoor use. Adjustable resistance: Holds sand, iron sand, or steel plates so you can customize weight increments to match your fitness level and training goals. Compact size and layout: Vest length 50 cm with a total of 16 load cells/grids distributed across the front and back for balanced weight placement and stable feel. High capacity: Maximum load 20 kg, allowing meaningful added resistance without sacrificing mobility. Evenly distributed load: Multiple grids ensure the extra weight is balanced across your torso, reducing strain on joints and helping maintain natural movement patterns. Improves training efficiency: Adds measurable resistance to cardio and strength workouts to increase intensity, calorie burn, and muscular engagement with bodyweight exercises. Versatile compatibility: Suitable for running, gym sessions, strength training, boxing, and other fitness activities both indoors and outdoors. Practical use scenarios Interval running or hill sprints: Add moderate weight (for example 2–10 kg) to increase cardiovascular demand and leg power while preserving running form thanks to the vest's balanced grid layout. Bodyweight strength sessions: Wear the vest during push-ups, pull-ups, squats, or lunges to progressively overload muscles without changing exercise technique. Boxing and circuit training: Use light-to-moderate loads for conditioning rounds to increase endurance and power output without restricting mobility. Product details at a glance Material: High-quality Oxford fabric Length: 50 cm Load configuration: 16 grids across front and back Maximum load: 20 kg Compatible loading: Sand, iron sand, steel plates Intended use: Indoor and outdoor fitness, running, strength training, boxing, and similar activities What this solves Provides a simple, adjustable way to increase workout intensity without extra machines. Balances added weight to reduce uneven loading and discomfort. Durable materials ensure the vest withstands repeated use in varied training environments.