KEEP SHOES SEPARATE - When you've got to bring your footwear with you, keeping it away from your clean gear is a bit of a hassle, but not if you have a secret solution. Built into the side panel is a separate shoe compartment that has a zip closure, venting grommets to keep things fresh, and it tucks right back in to the main compartment so there is no added bulk. QUALITY CONSTRUCTION - Lightweight yet durable, this duffel bag is made from a water resistant 600 Denier vinyl back polyester, designed to withstand heavy use. The detachable shoulder strap is reinforced with a sliding padded shoulder panel for the ultimate comfort. EASY STORAGE - In addition to the large main compartment, this ideal bags has a number of ways to store your stuff. A separate envelope bag boasts a zip closure and is ideal for small items that need to remain together. A built-in cell phone pocket inside and an outer water bottle pocket round out the organization crew and give you space for all your goods.