[UPGRADED VERSION] DURABLE & WATER-RESISTANT BACKPACK: This Pokarla foldable backpack has sturdy structure with highly tear resistant, wear-resisting and rain-proof honeycomb nylon material for added strength and long-lasting performance. Major stress points have been reinforced by Bar-tack Process. Heavy duty two-way SBS metal zippers. Upgrade: With a hole for USB cable/ water tube, you can easily charge your phone or drink water without holding on hand.

ROOMY, MULITCOMPARTMENT & LIGHTWEIGHT: Ultralight backpack (0.88LB) with one main zip compartment (35L) for secure spacious storage. Two front zip pockets for small items, two side mesh pockets for umbrella/bottle, one inner zip pocket for secure things and a sleeve to keep your gear securely organized. Two mesh pockets on shoulder straps for items like cellphone (We reduced 1 mesh pocket & inner zip pocket according to customer's suggestion, so you may receive different style).

COMFORTABLE & OUTDOOR COMPANION: Adjustable mesh straps for lightweight shock absorption makes you carry everything comfortably. Adjustable chest strap with an orange whistle buckle to relieve the stress of shoulders and send a message for help in emergency. Two side buckles keep long accessories in the mesh pockets stable. Reflective strip on the backpack make it a terrific companion for both day trip and night outdoor adventures.

COMPACT & CONVENIENT: Fold the backpack into its own zip front pocket easily for anywhere storage. Unfold from pocket to backpack within just 10 seconds. A must-have on any trip. Fold diameter: 9.4"W x 8.4"H x 2"D. Unfold diameter: 13.4"W x 20"H x 7.9"D.AIRPORT HERO - To aviod overweight charge, release the backpack from your suitcase as a carry-on bag and put your luggage in.