Here's a photo of the Lowepro Slingshot 200 All Weather Backpack close-up showing the main access flap zippers and pull strings, above the retention strap so the zippers won't unzip during rides.

Here's a photo of the Lowepro Slingshot 200 All Weather Backpack close-up showing the main access flap zippers and pull strings. Zipper action is very smooth and clean, indicating high quality zippers. You can easily zip or unzip the backpack with one hand, no tugging required. Time will tell how well they hold up to wear and tear.

Here's a photo of the Lowepro Slingshot 200 All Weather Backpack close-up showing the front flap retention strap and clasp secured and ready for transport.

Here's a photo of the Lowepro Slingshot 200 All Weather Backpack close-up showing the front flap retention strap and clasp.

Here's a photo of the Lowepro Slingshot 200 All Weather Backpack close-up showing the front flap retention strap and clasp.

Here's a photo of the Lowepro Slingshot 200 All Weather Backpack loaded with a Canon Digital Rebel SLR camera with EF 18-55mm lens, Sigma 50-500mm telephoto zoom lens, and other equipment.