Common materials include polyester, 100% recycled nylon, regular nylon, mesh, and canvas — covering both coated/woven fabrics and open mesh styles.
Age recommendations vary by product: some listings specify "18 months and up," while others are listed as suitable for "All Ages." Check each product page for the manufacturer's age guidance before purchasing.
Swim-oriented bags typically use nylon mesh for airflow and quick drying, have a pull-drawstring closure, often include a small zip compartment for goggles, a hook for hanging or storage, and a waterproof name tag for identification.
Comfort features include thicker or improved shoulder straps to reduce digging and a mesh back panel or mesh-backed design to improve breathability while carrying.