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Our insulated envelopes are a lightweight, durable, thermal insulated envelope designed with a spacious payload chamber for your temperature- sensitive articles. Available in popular sizes, the insulated envelope can be used with or without standard overnight boxes for further protection. This envelope addresses the challenge of heat loss with its efficient insulation, reflective exterior surface, and virtually airtight payload chamber.

Two insulated envelopes one sealed and one unsealed

Easy Packout Recommendations

For optimum results prior to packing, chill your payload and the envelope to the lowest possible temperature within your required temperature range. Refrigerant gel paks should be pre-frozen for 24 hours to maximize performance.

  1. Insert the product and refrigerant into the envelope.
  2. Perform double closure by:
    • Pinching/sealing the envelope along the inner zip lock, and
    • Peeling away the self-adhesive strip on the envelope flap and folding shut.

Sizes Available

Dimensions/Sizes are Inside Dimensions