Molchanovs SPORT Bifins 3 Fiberglass Blades


The Molchanovs SPORT Bifins 3 Fiberglass Blades strike the optimal balance between performance and value, making them ideal for freedivers who train, teach, and fun dive in the pool and open water. Updates include a new blade-layering process for more efficient finning, size-graded stiffness for balance, and a rounded blade angle for durability.

Pair these blades with standard-size SPORT Silicone Foot Pockets for a complete fin which can easily be disassembled for travel or swapped out for carbon blades.

Premium fiberglass blades
Premium 100% UHC fiberglass is more durable than carbon fiber blades and gives you flexibility and feedback from each kick, creating the optimal balance between performance and value.

Updated blade-layering process
Blades are consistently fine-tuned to be low-effort and high-propulsion, integrating our expertise in amateur and professional freediving athletes with our education system. The layering near the foot pocket now gives you a smoother and softer kick.

Size-graded stiffness
Blade sizes now vary with stiffness so that length matches resistance. Soft blades are a little shorter for added maneuverability, while stiffer blades are longer for more balanced propulsion.

Rounded blade angle
The updated 28° blade angle now features a smoother and softer curve, adding another layer of durability to this critical area of the blade.

Easy assembly
Assembling the foot pockets to the blades takes only minutes, making it easier than ever to switch to a new pair of foot pockets or upgrade to a new blade.

Minimalistic design
The new design is sporty and fierce while keeping the signature Molchanovs minimalism and style. Carbon blades are black - choose from 5 bold accent colors.

Details and materials

  • Materials:
    • Premium 100% UHC fiberglass
  • Improved blade-layering system for more propulsion with less effort
  • Smoother and more gradual blade angle for added durability
  • Size-graded blade stiffness ensures that the blade’s length matches its resistance
    • Soft: Reduced blade length for effortless maneuverability
    • Medium: Extended blade length for balanced propulsion

Technical Specifications

  • Blade Angle: 28°
  • Blade Length (from angle to tip):
    • Soft: 62cm (24.4in)
    • Medium: 64cm (25.2in)
  • Weight (one pair of fins): 667g (1.5lb)
  • Blade Accent Colors: Black, Blue, White, Gold, and Pink

Assembly instructions

Please note that the SPORT Bifins 3 Fiberglass Blades are sold independently and do not come with a mounting system. The mounting system is exclusively provided with the SPORT Silicone Foot Pockets. Instructions can be found here. We can also assemble them for you for a $50 assembly fee.