D&d Neck Weight 1.6 Kg - Black

D&D Collar - Deep & Dynamic for Freediving and Spearfishing

The D&D Collar, Deep & Dynamic, represents the evolution of the Dyno collar made by the C4 brand, designed specifically for freedivers practicing both depth and dynamic disciplines. Its key feature is weight modulation, allowing the ballast to be adjusted from 1 kg up to 4 kg in a single product, ensuring flexibility and precision when fine-tuning underwater trim.

Technical Features

• Made of lead coated with thermoplastic rubber, ensuring mechanical strength and protection against wear
• Highly hydrodynamic design to reduce drag in the water and promote a smooth swimming motion without overloading the neck
• Semi-mobile segments that follow the movements of the thoracic vertebrae, ensuring maximum freedom of movement without restrictions
• Weight distribution concentrated near the balance point of buoyancy forces, improving stability and balance during the dive
• Equipped with safety clips to prevent accidental loss of the segments

Functionality and Modularity

The system consists of a modular collar to which up to 5 semi-mobile rear segments with variable weights can be added, making it easy to move from a 1 kg setup up to 4 kg. The numbered plastic segments allow quick assembly and replacement, making it easier to adapt to different diving conditions.

Available Configurations

• 1.6 kg collar, suitable for depth freediving
• 3 kg collar with 4 rear segments
• 4 kg collar with 5 rear segments, ideal for dynamic freediving when more ballast is required

Additional Details

• Color: black
• Base weight: 1.6 kg
• Rear segments can be added or replaced by purchasing the 4-piece kit or individual 280 gram Dyno and 1 kg Dyno segments

The D&D collar is an ideal technical solution for freedivers and spearfishers who need a modular, comfortable ballast system to optimize trim in both static and dynamic dives, improving weight transfer and freedom of movement during finning.