Product Details: Brand: ROCKBROS Dimensions: approx. 8*8*20 cm (LWH) Capacity: approx. 1 L Weight: approx. 87 g Color: Black Suitable for: Road bikes, Mountain bikes, Folding bikes, Trekking bikes, e-bikes, strollers, etc. Features: With Shoulder Strap: This bicycle bag can also be used as a shoulder bag with the included strap. It's very practical when you want to carry your important items with you. 1L Multifunctional Water Bottle Holder: A versatile water bottle bag with a 1L capacity, large enough to store drink bottles, refreshments, coffee cups, and stainless steel bottles (with a diameter under 2.75 inches / 8 cm). Drawstring Design: The drawstring helps secure the water bottle better, preventing it from falling out even when riding on bumpy roads. Secure Installation: This bike bag features multiple strap mounting points for a more stable and secure attachment. Water-Repellent: The exterior is made of 500D laminated material, which is durable and water-repellent. Insulated & Durable: The interior material of the handlebar bag is made from 210D polyester and PE, which can help keep your drinks cool in summer. Multifunctional: This ROCKBROS bicycle bag can be easily mounted on the bike handlebar or frame using 3 adjustable hook-and-loop straps. This bottle holder can be attached to a bicycle handlebar or seat post. The bag can also be used as a shoulder bag with the included strap, making it very convenient for carrying your essentials.