B-Fast Jammer Men's Racing Swim Shorts

Regular Price: € 90.00 -50%

€ 45.00

Designed for competitive swimmers. Developed with Fabien Gilot, Olympic Champion and NABAIJI technical partner. 

More details
SKU: S102940 (2040303)
Select a color:
    Select a size :
Size Guide

Available online

Delivery in 7 to 8 days

Product benefits
  1. Hydrodynamics
    AQUARACE technology reduces body drag resistance in water.
  2. Glide performance
    Water repellent fabric absorbs virtually no water and guarantees a perfect glide
  3. Muscle support
    Excellent muscle compression at the quads and glutes.
  4. Lightweight
    The B-FAST JAMMER's component is ultra thin and lightweight 155 g/m2
  5. Environmental impact
    Environmental impact
    SCORE C - Comparison: men's swim shorts - technical details
Product feature
  1. STYLE
    JAMMER – length 44 cm The Jammer provides great muscle compression for the quads and glutes, resulting in the perfect fit.
    AQUARACE material is ultra-thin and lightweight thanks to high percentage of elastane, whilst remaining highly tear resistant. Moreover its thinness and water repellency enable ultra quick drying after swimming. In fact the water repellent fabric absorbs virtually no water and actually blocks it on the outer surface, creating micro bubbles that assist with buoyancy
    The B-FAST Jammer is FINA (International Swimming Federation) approved competition swimwear.
    The swimsuits and jammers benefiting from AQUARACE technology are designed for competitive swimmers to enhance performance by incorporating superior hydrodynamics, increased buoyancy as well as fatigue reduction during physical exercise.
    Component provides good compression with its high elastane content and very good springback. The position of the red reinforcement stripes provides more compression at belt and leg level. Thanks to a scientific cut and a muscle compressing material, the drag coefficient of the water is increased and the blood flow optimises energy expenditure, which helps regulate fatigue
    Thermobonded seams are flat assemblies, making it more skin tight for superior hydrodynamics. This assembly technique creates a smooth, sleek quality finish, which promotes liquid streamline flow when in interaction with fabric and thus minimizes drag resistance.
    The non-slip bands located at the edges (waistband and thigh) prevent the fabric from wrinkling. This enables the jammers to stay in place during dives and turns, cover as much skin as possible throughout the race and limit resistance.
  8. Score to compare the environmental impact of products
    The environmental impact of the product is calculated over its entire life cycle and with different indicators. An overall score (ABCDE) is attributed to help you easily identify the products with the best environmental performance by comparing products of the same type with one another (T-shirts, trousers, backpacks, etc.). Decathlon chose to apply this voluntary environmental labelling scheme. For more information, visit:
Product testing
  1. Composition
    Main fabric : 53.0% Polyamide (PA), 47.0% Elastane Main lining : 77.0% Polyamide (PA), 23.0% Elastane
  2. Storage advice
    Store the swim shorts in a dry place.
  3. Product restrictions
    Not recommended for use on slides.
  4. Product catchline
    FINA (International Swimming Federation) approved swimming competition jammers that combine compression, glide and hydrodynamics thanks to AQUARACE technology.