Ziploc zipper bags are offered in a range of sizes — commonly from 1 quart up through gallon sizes (including 1‑gallon and 2‑gallon) and into larger storage bags. Across listings capacities range from 1 Quart up to 10 Gallon. Exact sizes and capacities vary by product and pack.

These bags use different seal styles: many listings show double-seal locks (press-seal) and several use slider/slide-zip closures (slider seals).

Many zipper bag options are labeled freezer-safe and state they help protect food from freezer burn; one freezer-quart description noted protection in testing for up to 12 weeks. Labeling and performance can vary by product, so check the specific item details for any tested duration or freezer-use guidance.

The bags are described as made from plastic (polyethylene or polypropylene) and are commonly labeled BPA-free; some listings also note they are phthalate-free.

Listings commonly state the bags can be reused after hand-washing and air-drying, but advise not to reuse bags that stored raw meat, fish, eggs, or allergy-triggering foods.

Slider-style bags are described as easy-open for quick packing and access, and at least one description notes sliders are strong enough to slide and close 100+ times.