Input · Structure · Exit
A delivery system, not a promised outcome.
Cold is the sensory input. Neuropause provides the attentional structure. The Ice Sack brings the two together in one bounded session.
Its role is specific: provide broad dry cold contact, hold the session to a defined format, and make the beginning and ending clear. What a person experiences inside that format can vary.
The system sequence
From stored cold to deliberate exit.
- 01
Prepare
Freeze the system fully. The phase-change material stores the thermal input before the session begins.
- 02
Contain
Zip into the soft outer shell. The hex-grid core places dry cold across a broad area without water, filling, or drainage.
- 03
Practice
Tap the NFC mark to begin Neuropause. Entry, Load, and Peak organize attention across one defined nine-minute session.
- 04
Exit
End at nine minutes or sooner when needed. Unzip, rewarm naturally, and notice what changed without prescribing what you should feel.
Product facts
Published system configuration.
These are manufacturer-supplied specifications for the Origin Edition. They describe the product and its use format. They are not evidence of physiological, cognitive, recovery, mood, performance, or therapeutic outcomes.
- Delivery format
- Dry cold containment
- Cold core
- Hex-grid phase-change material
- Session format
- Nine minutes · Entry, Load, Peak
- Protocol access
- NFC tap to guided audio
- Preparation
- Freeze fully for five hours
- Cold reserve
- Rated for 15+ minutes at room temperature
- Approximate weight
- 9.5 lb
- Packed size
- 15 × 10 × 5.5 in
- Published fit
- Most body types up to 6 ft 4 in
Cold-reserve rating is based on BHVD test conditions at room temperature. Final production specifications and instructions for use govern.
Product evidence boundary
Related research is context. Product testing is evidence.
What the wider field can tell us
Research can explain how humans detect cold, how responses vary, and how different forms of cooling have been studied. Findings from water immersion, cryotherapy, or localized icing do not automatically establish what The Ice Sack does.
What must be measured directly
Thermal delivery, contact behavior, tolerability, protocol use, and any product-specific outcome require evidence collected with the actual system under defined conditions.
What comes next
Build the product record in public.
The category becomes credible when product questions become testable questions. BHVD intends to publish methods, results, and limitations as direct system testing is completed.
- 01Cold-core temperature over time
- 02Skin-contact temperature by body region
- 03Contact consistency across fit profiles
- 04Session tolerability and stop conditions
- 05Protocol completion and adherence
- 06Reported experience before, during, and after use
The Ice Sack · Origin Edition
The first system for the practice.
See the full product configuration, current availability, safety information, and reservation terms on The Ice Sack website.
Explore Origin EditionPublisher disclosure: The Cold Shift is created by BHVD, maker of The Ice Sack. Product specifications are identified as manufacturer supplied. Scientific context and product-specific evidence are kept separate.