Waterproof and durable design - Made of high quality waterproof fabric; exterior and interior are stain resistant and easy to wipe clean. Smooth zippers and fine stitching ensure durability and wear resistance. Size: 34x15x44 cm (13.38x5.9x17.32 in) Two-layer separation for organization and cooling - Special 2-layer design: top compartment offers a large space to store baby clothes, nappies and more in an organized way. Bottom compartment is lined with aluminium foil and can be used as a cooler bag to keep breast milk fresh and prevent leakage of liquids Convenient pockets for quick access - Multiple interior pockets in the top compartment keep items tidy - Insulated bottle pocket on the side keeps baby bottles warm or fresh - Front zippered pocket for easy access to small items like wipes and phones - Hidden back pocket keeps private items safe Lightweight and versatile - Lightweight 610 g - Includes 2 stroller straps to hang on a stroller for hands-free use - Can be used as casual backpack, handbag, stroller bag, travel bag, etc. - Suitable for travel, shopping and outdoor activities Use scenarios - Travel with baby: top compartment holds clothes and nappies; bottom cooler keeps breast milk cold during transit - Daily outings or shopping: quick access to wipes and phone from front pocket; bottles stay fresh in the insulated side pocket - Outdoor or airport use: lightweight and hands-free design with stroller straps for convenient transport on the go