Tantrums

Crest 6 Hydration Pack

Crest 6 Hydration Pack

$179.99
$179.99
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Built for the demands of race day and the grind of training, the Crest 6 Hydration Pack delivers the perfect balance of storage, stability, and breathability. With a zero-bounce fit, intuitive pocket layout, and premium materials, this pack is engineered to keep you moving efficiently over any terrain.

Due to manufacturing issues, we were not able to stock XS, S, or XL this fall. Please check back in Spring 26 for a full size run! 

Key Features

  • Optimized Fit & Stability
    Hugs the body without restricting movement — eliminates bounce at speed.
  • Hydration Versatility
    Carries a 1.5L reservoir in the rear and 2 × 600mL Hydrapak WMX soft flasks up front.
  • Breathable & Lightweight
    Ultra-light mesh with ventilation zones for maximum airflow.
  • Intuitive Pocket Layout
    Easy-access stash pockets for gels, bottles, and gear without breaking stride.
  • Minimalist Design, Maximum Function
    A race-ready aesthetic with purpose-built features.
  • Trekking Pole Carry
    Hidden loops and elastic straps let you securely attach poles. Compatible with Salomon’s Quiver system.

Tech Specs

  • Weight: 135g (Size Medium)
  • Materials: 75% Nylon / 25% Mesh
  • Hydration Compatibility: 1.5L bladder + 2 × 600mL soft flasks
  • Includes: 2 × 600mL soft flasks (co-developed with HydraPak)

Built for Performance

From fast-moving ultras to all-day mountain missions, the Crest 6 is an athlete-driven evolution of what a hydration pack should be.

No gimmicks. No unnecessary weight. Just pure function. Dialed for speed and support.

Tantrums suggests sizing up if you are between sizes. Sizing runs small.

Built for the demands of race day and the grind of training, the Crest 6 Hydration Pack delivers the perfect balance of storage, stability, and breathability. With a zero-bounce fit, intuitive pocket layout, and premium materials, this pack is engineered to keep you moving efficiently over any terrain.

Due to manufacturing issues, we were not able to stock XS, S, or XL this fall. Please check back in Spring 26 for a full size run! 

Key Features

  • Optimized Fit & Stability
    Hugs the body without restricting movement — eliminates bounce at speed.
  • Hydration Versatility
    Carries a 1.5L reservoir in the rear and 2 × 600mL Hydrapak WMX soft flasks up front.
  • Breathable & Lightweight
    Ultra-light mesh with ventilation zones for maximum airflow.
  • Intuitive Pocket Layout
    Easy-access stash pockets for gels, bottles, and gear without breaking stride.
  • Minimalist Design, Maximum Function
    A race-ready aesthetic with purpose-built features.
  • Trekking Pole Carry
    Hidden loops and elastic straps let you securely attach poles. Compatible with Salomon’s Quiver system.

Tech Specs

  • Weight: 135g (Size Medium)
  • Materials: 75% Nylon / 25% Mesh
  • Hydration Compatibility: 1.5L bladder + 2 × 600mL soft flasks
  • Includes: 2 × 600mL soft flasks (co-developed with HydraPak)

Built for Performance

From fast-moving ultras to all-day mountain missions, the Crest 6 is an athlete-driven evolution of what a hydration pack should be.

No gimmicks. No unnecessary weight. Just pure function. Dialed for speed and support.

Tantrums suggests sizing up if you are between sizes. Sizing runs small.