Upgrade or replace the chest strap on your Boundary backpack with the Magnetic Chest Strap. It features strong aluminum toggles and YKK® snaps for a secure fit, and a magnetic buckle for quick and easy use. Compatible with the Errant Pack , Prima System , and Rennen Daypack . Specs Dimensions: 11W x 8H x 1D" Capacity: 3 L Weight: 30 g Material: 55% Hemp / 45% Recycled Poly Features Made from breathable, antibacterial hemp and recycled materials. Dries 5x faster than regular fabric—perfect for travel. Color-coded for quick sorting. Machine washable and tumble dry safe. Great for socks, undergarments, or small travel items. Shipping + Returns Enjoy free 2-day express shipping on U.S. orders $100+ and fast international shipping on orders $400+. Learn more . 30-day return policy .