I use a few freezer packs and that works well enough for a few hours
Pros They use very durable, high-quality materials There is a lot of space to hold clothing, so you don't have to squish it in The medium and large cubes have built-in organization Cons Sturdy materials occupy more space and weigh more than lightweight options They lack compression zippers Lighter colorways may start to show blemishes over time Technical Details Capacity 3l Medium: 6L, Large: 14L Weight (oz) 3.9 oz (110.6 g) Medium: 6.7 oz, Large: 10.23 oz Dimensions 10.5 in x 5.5 in x 3.5 in (26.7 x 14 x 8.9 cm) Medium: 11" x 7" x 4.3, Large: 14" x 11" x 5.9 Notable Materials Recycled Polyester, Thermoplastic Polyurethane (TPU), Recycled Nylon, Polyurethane (PU), YKK Zippers, Meets bluesign Criteria Manufacturing Country Vietnam Warranty Information Full Review Packing cubes should be pretty simpletheyre just zippered pouches to hold your clothing
The helmet should be certified to your local safety standards, or it wont offer your precious brain an ounce of protection
I was thinking you might want to try it upside down so that bottom sharp end part isn't next to the babies, then cut the slit in the pantyhose on the same side you cut out on the container