We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

ARENTI

ARENTI Neck Cooling Tube 2 in 1 Accessory Black 2 Pack

SKU CH-F0S9-5KYTN

Two reusable neck coolers freeze below 18 °C (64 °F) using plant-based phase-change material, last longer than water, weigh 5.3 oz each, and fit the neck curve with a TPU cover that prevents frostbite

  • Freezes below 18 °C (64 °F) for rapid cooling
  • TPU outer layer prevents frostbite on skin
  • Reusable phase-change material refreezes after each use
  • Ergonomic shape follows neck curvature for comfort
  • Lightweight at 5.3 oz for easy carrying

2-in-1 Neck Cooling Tubes

This pack contains two wearable neck coolers that use a plant-based phase change material. They are designed for anyone needing personal cooling during hot weather, outdoor work or indoor environments without air conditioning. Each tube activates at temperatures below 18 °C (64 °F) and is ready to use after freezing.

TPU-Wrapped Integrated Moulding

The outer layer is made from thermoplastic polyurethane with no stitching, which removes leak paths and prevents direct skin contact with the frozen core. The material has passed SGS safety testing. At about 5.3 oz each, the tubes are light enough to wear for extended periods and follow the neck’s curvature for a secure fit.

Phase Change Material Limits

The coolers only solidify when the surrounding temperature drops below 18 °C, so a standard refrigerator or freezer is required before each use. Cooling duration depends on ambient heat and body temperature, meaning performance will vary across different conditions. They are not suited for situations where a power source or continuous sub-18 °C environment is unavailable.

Highlights

  • Freezes below 18 °C (64 °F) for rapid cooling
  • TPU outer layer prevents frostbite on skin
  • Reusable phase-change material refreezes after each use
  • Ergonomic shape follows neck curvature for comfort
  • Lightweight at 5.3 oz for easy carrying

Specifications

No published specifications for this item yet.

Questions about this item

At what temperature does the Phase Change Material start freezing?

The material begins to solidify when the surrounding temperature drops below 18 °C (64 °F), so a standard fridge or freezer will activate it.

What are the dimensions and weight of each cooling tube?

Each tube weighs about 5.3 oz and is shaped to follow the neck’s curve for a secure, hands-free fit.

How do I prepare the coolers for first use and avoid the common mistake?

Place both tubes in the refrigerator or freezer until fully solid; the error people make is wearing them while still partially liquid, which cuts cooling time sharply.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.