Thermagrid fabric insulation: Maintains food or drinks at the desired temperature for extended periods
Water-resistant YKK Aquaguard zipper: Seals out moisture to protect contents
Mesh exterior pocket: Allows quick access to snacks or utensils
Top zipper pocket: Provides easy storage for small items
Compatible with Errant backpack wet/dry compartment: Ensures perfect fit and optimal performance
Summarized by Shop
The Errant Thermal Insert fits perfectly into the Errant Pack’s wet/dry compartment. It uses Boundary’s ThermaGrid fabric to keep your food or drinks hot or cold for up to 8–10 hours. A water-resistant YKK AquaGuard® zipper keeps everything secure.
Specs
Dimensions: 9.5W x 6H x 6D"
Capacity:
Dimensions
9.5 in W x 6 in H x 6 in D
Capacity
3 L
Weight
0.2 lbs (0.1 kg)
Closure Type
Zipper
Material
Fabric, Polyester, Nylon
Color
Black, Silver
Summarized by Shop
5.0
6 ratings
5
4
3
2
1
It's very well constructed and feels durable. It's not as large as many lunchboxes, and it can't fit many frozen meals or commonly available pre-portioned lunch trays, but I do like that it isn't a large bulky object. I already had a small lunchbox that fit well, but I still only had a little space for an ice pack and a yogurt cup. I think for the advertised purpose of carrying drinks and some ice while zipped up in the bottom of the errant pack, it would work extraordinarily well. It fits snugly in the bottom zip compartment of the errant, but it does take up a lot of space inside and it is difficult to use the water bottle pocket on the outside of the pack while it's in. Overall, I think it's a nice little insulated box, and it works well with the errant pack.
Kaleb · June 19, 2025
Very good lunchbox.
I like things that fit together. Put cool or warm food in this bad boy, then put it (top up) inside the bottom pouch. Logo facing front. Fits wonderfully, no issues. Great compact size and gives a flat bottom to the bag and helps it stand up great when I have some tubberware or something. Highly recommend.
D
Daniel · June 26, 2023
Cool thing to have on hot summer days
The insert is top notch :) just put an cool insert and few cold beers and you are set for the day, or at least until the next refill 🍻.