Peak Design Capture Clip

Details from Amazon:

• The all-new Capture is the most secure, convenient, accessible way to carry your camera, period. Unlike a camera strap, Capture keeps your camera rigidly stable while hiking, biking, or moving around the studio.
• Unlike a camera bag, Capture keeps your camera instantly accessible with the click of a button.
• Your camera smoothly locks into the clip, where it is held rigidly and securely. Press the lockable quick-release button to remove.
• The new 3rd gen Capture is smaller, lighter, and smoother than ever before. All machined/anodized aluminum construction. Metal quick-release button and locking mechanism holds well over 90 kg (200 lbs). Beautiful new ultra-smooth finish enhances durability, and ultra-low profile design increases comfort.
• Includes Arca-Swiss compatible tripod plate. Lifetime warranty

The all-new Capture is the most secure, convenient, accessible way to carry your camera, period. Unlike a camera strap, Capture keeps your camera rigidly stable while hiking, biking, or moving around the studio. Unlike a camera bag, Capture keeps your camera instantly accessible with the click of a button. Includes 2 components: a metal clip that clamps to any backpack strap, belt, or bag, and an Arca tripod-compatible plate that screws into the bottom of your camera. Your camera locks into the clip, where it is held rigidly and securely. Press the lockable quick-release button to remove. Holds well over 200 lbs. (90kg), making it strong enough for the heaviest of pro camera/lens combinations.