ROCKBROS 3D Shell Bike Saddle Bag Upgrade straps with quality guaranrtee and friendly customer service <br> <b>Product Details:</b> <br> <br> Brand: RockBros <br> Material: Polyester composite material <br> Weight: 135 grams ( 0.3 pounds) <br> Size: W 3.22 * L 9 * H 3.93 inches ( 8 * 23 * 10 cm) <br> Color: Black/Red <br> Washing Warnings: <br> Wash with cool water: 30 degree <br> Do not brush, Do not bleach <br> <br> <b>Features:</b> <br> <br> Unique shape: 3D shell with wave cushion provides inside shock resistant protection if fell out <br> Night Visibility:Reflective strap around the seat bag to increase night visibility while night cycling. Taillight hook compact space on the seat post ( Taillight doesn't include in the package ) <br> Easy to install: 2 stickup straps and a rubber buckle simplify mount system.Moreover , it keeps saddle bag securely attach to seat post <br> Rainproof: Waterproof zipper prevent rain from splashing bag inside.Do not soak in the water for a long time <br>