Kata KT D-3N1-20 Sling/Backpack (Black) Easily convert your 3N1 from a right-handed sling to a left-handed sling or a backpack Features "Thermal Shield Technology" to ensure optimal camera protection Included rain cover folds neatly away into an integrated pocket Fast, one handed camera access with "Quick Release Buckle" Waist strap is included to provide maximum comfort to your back when using the 3N1 in backpack mode