News

Sealock manufactures the large cooler tote bag for family outings that wholesale buyers source when one bag has to feed the whole group. A family day out is a different job from a quick grocery run: more mouths, more drinks, more hours in the sun, and a long carry from the car to the picnic table.

Sourcing RPET cooler bags? What GRS certification means, whether recycled fabric is durable enough, and how to verify a real supply chain before you order.

Dongguan Yifulong Outdoor Products Co., Ltd. (Sealock) has recently moved a custom soft cooler backpack order into mass production. The order, placed by an overseas brand customer, features two high-saturation abstract camo prints and has now entered full-scale production and delivery on the company's lines.

Discover how empty space accelerates ice melt inside your soft cooler. Learn the science of thermal bridging, optimal packing layers, and long-tail FAQs.

Most wholesale buyers choose a soft cooler by looking at the photo and the price. The foam density and liner grade — the two specs that actually determine how long the bag holds ice and whether melt-water soaks through — never appear on the quote sheet. This guide gives buyers the exact numbers to ask for: closed-cell foam density tiers (25 kg/m³ standard through 42 kg/m³ premium), ice-retention hour ranges, food-grade liner grades, and how each variable moves the 300-piece MOQ unit price.