Designed for lightweight durability, the Mountainsmith Mayhem 45L Internal Frame Pack is perfect for your next backpacking trip. This pack features an EVA backpanel, adjustable shoulder straps, and high density foam framesheet. With the Spectra® Fiber construction, the optimal strength-to-weight ratio helps you carry more gear more comfortably. DESIGN Internal frame pack with hybrid panel/top loading system Front panel pocket with daisy chain attachment and haul handle High-density foam framesheet with wireframe load dispersion Forward-pull adjustable waistbelt with ventilated padding and stretch mesh zippered pockets Hex-ridged EVA backpanel for airflow EVA/PU shoulder straps and extra-thick lumbar pad Front and side panel expansion pockets Top zipper pocket with secondary pocket below Ice/mixed tool lower panel pass-through sleeves SPECS Dimensions: 30” x 11.25” x 10” Waistbelt: 28” – 48” Torso Size: 16” - 20” Weight: 2 lb. 10 oz. Volume: 44 L Capacity: up to 45 lbs. Materials: 210d HT Nylon with 200d SPECTRA® R/S, 210d Nylon Embossed Liner, 2mm Spring Steel Additional Details Mountainsmith Limited Lifetime Warranty Style: 19-50301-01