Universal design fits all backpacks with a sternum strap Weatherproof — waterproof fabric + sealing zippers Installs on the right or left shoulder strap Locking bars trap sternum strap hardware for a no-slip fit Cushioned, breathable panel behind the backpack strap Fits cell phones, GPS devices, wallets, passports, sunglasses, and snacks Open-top elastic stash pocket for instant access Adjustable fit — able to mount high or low on backpack strap DuraGlide™ sealing external zipper — Smooth. Strong. Long-lasting. Co-engineered by Matador® and Zoom®. Contains recycled materials that meet Bluesign® criteria Finished with Matador®’s signature Switchback Stitch™ — a mark of quality and authenticity Weight: 2.8oz (78g) Dimensions: 7 x 3.5 x 2in (18 x 9 x 5cm) Materials: 420D Bluesign® recycled nylon, PFAS free #5 DuraGlide™ sealing zipper HDPE locking bars The Speed Stash attaches to the front of your backpack (any brand) shoulder strap to offer quick access to your phone, passport, wallet, snacks, or other small essentials—an easy addition to any backpack with a sternum strap. Which Backpack will the Speed Stash™ fit?All backpacks that have a sternum strap include our packable bags. How do I attach it to a backpack strap?The Speed Stash is fast and straightforward to install; we suggest wrapping it as tightly as possible to allow the locking bars to engage and eliminate slipping. Please refer to the demo video. Will the Speed Stash fit my phone?Yes, the Speed Stash fits most cell phones, even larger ones. Please refer to the dimensions. Does this product have a warranty?Yes, this product is warranted for 2 years