Under Armour Undeniable 5.0 Small Duffle Bag. Tried-and-true UA Undeniable bag that's lightweight and built with incredibly durable materials, this is a go-to bag for everyday performance. UA Storm technology delivers an element-battling, high water repellent finish. Tough, poly-urethane coated & foam-lined bottom. Has side panels for added durability & structure. Featuring a large vented pocket for laundry or shoes & internal slip pockets for organization. Has a dual water bottle slip pocket and an adjustable shoulder strap. Volume capacity of 40 Liters.