Extended Fit - EF packs add additional sizing to core packs, providing the same uncompromised performance with an inclusive fit. Made to fit up to 70-inch hips with extended hipbelt and shoulder straps, repositioned pockets, and a longer sternum strap Lightweight & Simple - Lightweight design and quality materials deliver a straightforward solution that can handle itself well on any trail Highly Ventilated, Adjustable Suspension - The adjustable AirSpeed backpanel features tensioned mesh for enhanced ventilation while a LightWire frame helps transfer and support the weight Raincover Included - Hope for bluebird weather, but know you're covered with our integrated and removable raincover that stows in its own pocket when the sun returns Daylite compatible Item Dimensions: 29.5H x 15W x 16.1D in; Item Weight: 3.9lb