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Sealock (YiFuLong Outdoor Gear Co., Ltd.) manufactures insulated and waterproof cooler bags for US importers — with real production lines in both China and Vietnam, so origin is a decision you make per programme rather than a reason to change supplier.

Sealock (YiFuLong Outdoor Gear Co., Ltd.) manufactures insulated cooler bags and backpacks for private-label Amazon sellers — and applies FNSKU labels, compliant poly bags and carton labelling at the factory, before the goods leave.

"Insulated cooler bag" covers products that have almost nothing in common beyond the name — a 5L lunch bag and a 45L welded expedition pack are built differently, perform differently and are bought by different people. This guide sorts the category by form, construction and cold-hold class, so you can identify which type you actually need. Written by Sealock (YiFuLong Outdoor Gear Co., Ltd.), a manufacturer of insulated and waterproof bags since 2003.

There is no honest flat price for a custom cooler backpack, and any factory that gives you one before seeing your specification is guessing.Unit cost is driven by insulation tier, shell material, closure type, capacity, quantity and branding — and those choices can move the same-size bag by a multiple, not a percentage.

Ours is one of them. Sealock (YiFuLong Outdoor Gear Co., Ltd.) produces insulated and waterproof bags for international outdoor and lifestyle brands including Stanley, YETI, Hydro Flask, Osprey, Musto and Simms. YETI visits our Vietnam plant regularly.Factory since 2003 — three in-house high-frequency welding factories plus our own sewing lines, in Dongguan, Guangdong, China and Ho Chi Minh City, Vietnam. 20,000+ m², exporting to 80+ countries.

Sealock (YiFuLong Outdoor Gear Co., Ltd.) manufactures travel thermal cooler backpacks built to carry-on dimensions and welded leakproof, so nothing reaches a suitcase or an overhead bin. Factory since 2003 — three in-house high-frequency welding factories plus our own sewing lines, in Dongguan, Guangdong, China and Ho Chi Minh City, Vietnam.