KKBESTPACK 100 Large Poly Mailers 10x13 Shipping Bags for Small Business – Self Sealing Package Envelopes (10 x 13 Pack of 100, Black)

These black poly mailers are sturdy yet lightweight, with a strong adhesive strip that keeps everything secure. The sleek black finish makes packages look clean and professional, and they’re affordable enough to stock up on without worry. They’ve quickly become my go-to for reliable, hassle-free shipping.

Fantastic poly mailers! I have been using this product for my small business for almost a year now. I find that it’s decent quality and is not see-through at all! I often order the 10x13 size and it works for most items! They’re pretty thick and are unlikely to rip or be damaged during shipping, but you can always double up if you’re paranoid.

I sell clothes on multiple platforms. I have sold over hundreds of units and have not received one complaint on these bags. They are great quality and a great price. They are thick and durable. The self sealing stick is very sticky and I never had a problem with it coming undone.

Great!! I love these for our orders we ship out. Fast shipping and great quality. I love the black color it’s the perfect thickness and doesn’t feel like a thin trash bag. You can’t see through them at all. They fold down easily to fit whatever I’m mailing, and the protection is excellent. They don’t rip and hold up really well. Highly recommend!

Excellent quality! Very durable. The size is just as described. It makes it easy to ship items in these because I don’t have to worry about extra cardboard weight. I’ll definitely be purchasing again!

It worth it and quality is good too.

These poly mailers are perfect for shipping my Depop orders. The 10x13 size fits most clothing items without being too bulky or wasteful. The self-sealing strip is strong and secure - no issues with packages opening during transit. They're durable enough to protect items without tearing. Getting 100 in a pack is great value for small business shipping needs. They look professional and keep my costs down. Reliable mailers that do exactly what I need. Highly recommend for anyone selling online.

I use these to send packages out for my online business. They are very good quality and a good value. The capacity is good, the color is awesome and you cannot see through it. It offers my products great protection during shipping. They are also very lightweight.