21L Waterproof Soft Cooler Box with Shoulder Strap

The SEALOCK Large Waterproof Soft Cooler Bag is designed for outdoor adventures where reliable cold retention and waterproof performance matter most. Built with a rugged waterproof outer shell, high-density insulation, and a leakproof liner, this cooler keeps food and beverages cold for extended periods while standing up to rain, splashes, mud, and rough outdoor environments.

Its spacious interior provides enough room for drinks, meals, fresh food, ice packs, or fishing bait, making it an ideal choice for camping, fishing, boating, kayaking, beach trips, tailgating, and road travel.

Designed for OEM and private label projects, this soft cooler combines premium appearance with practical functionality for outdoor brands and wholesalers.

Why choose our product?

It adopts three-layer insulation technology: the outer layer is made of TPU waterproof fabric, with insulation cotton sandwiched in the middle, and the inner layer is made of food grade TPU material, with excellent insulation effect. Whether it's long-distance travel, outdoor camping, friend gatherings, or daily work, you can keep food and drinks fresh and flavorful.

The Leakproof Lunch Box Cooler is also very comfortable to carry, with adjustable shoulder straps and a thick enough back padding that won't dig into your shoulders. The outer waterproof fabric is both durable and stain-resistant, making it suitable for various environments.

Cleaning is particularly convenient. If the inner and outer surfaces are dirty, use a damp cloth dipped in neutral detergent to wipe them clean. Remember to air dry it in a well ventilated place after use. Do not use a dryer. If properly maintained, it can last for a long time

Product Features

• Waterproof exterior fabric for outdoor use
• Leakproof insulated liner prevents water leakage
• Thick high-density foam insulation for long-lasting cooling
• Wide-mouth opening for easy loading and cleaning
• Adjustable shoulder strap and reinforced carrying handles
• Heavy-duty zipper with smooth operation
• Durable welded construction for improved waterproof performance
• Easy-to-clean interior surface
• Suitable for camping, fishing, boating, beach, picnic, and travel

Technical Specifications

FAQ

1.Who are we?

Our company is located in Guangdong and was established in 2001. Our products are sold to multiple regions worldwide, with North America accounting for 40.00%, East Asia 18.00%, the domestic market 14.00%, Southeast Asia 10.00%, Eastern Europe 4.00%, Southern Europe 3.00%, Oceania, Western Europe, and the Middle East each accounting for 2.00%, and South Asia, South America, Central America, Northern Europe, and Africa each accounting for 1.00%. We have approximately 101-200 employees in our office.

2.How do we guarantee product quality?

We will definitely provide you with pre-production samples before mass production.

We will also conduct a final inspection before shipping; only if there are no problems will we arrange shipment.

3.What can you buy from us?

Insulated bags / Waterproof bags / Waterproof backpacks / Water bladders / Bicycle bags

4.Why choose us instead of other suppliers?

YiFuLong Outdoor Gear Co., Ltd. has 21 years of experience in the design and development of outdoor bags and thermal insulation products. With factories in China and Vietnam, we can produce a full range of sports bags and thermal insulation products. OEM cooperation is welcome.

5.What services do we provide?

Supported delivery terms: FOB, CIF, EXW;

Accepted payment currency: USD;

Supported payment methods: Wire transfer (T/T), Letter of Credit (L/C), PayPal, Western Union, Cash;

Communication languages: English, Japanese