backpack lightweight travel For Personal Item Under Seat Fits Frontier Size 15.74 x 12.2 x 5.51 Inches, Carry On Ready For Flights, Unisex Day Trip The front Tortuga Travel Backpack Lite 40L

Two additional straps at the base of the pack can be use for knee pads

Oceana.org (Report)

Harness Edgeless mesh wrap for a soft, breathable contact surface Adjustable sternum strap with rescue whistle Features Zippered large main pocket with stretch compartment Zippered lower storage compartment Adjustable AirSpeed backpanel Removeable and machine washable cockpit Fit-on-the-Fly hipbelt Zippered hip pockets Zippered hip pockets UPF 50 sunshade Upper side mesh panel pockets Adjustable stirrups Easy-access hydration sleeve Mirror Dual grab handles Tech Specs Main fabric: bluesign APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS Lining fabric: bluesign APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS Bottom fabric: bluesign APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS Load range: 10.75 - 22 kg Volume: 36 L Dimensions: 75H X 39W X 45D CM Producer's weight: 3.78 Kg

You can hike in either a clockwise or counter-clockwise direction