Polyester

✅【Universal Fit for 2 Bikes】 -- This cover is X-large size,Fit for 2 bikes -82 L x 37 W x 46 H inches (208L x 94W x 117H cm). Bike covers are fits up to 29Inch 2 bikes.Please place the fronts of the two bicycles in opposite directions to measure bike-set up to match cover size.

✅【2023 New Designed For Transportation Use and Stationary Use 】-- For use with travelling vehicles such as cars, RVs and trucks, using a hitch mounted bike rack or other styles of car rack. Covers feature innovative 3 point ‘necking’ straps with 2pcs strong windproof buckle straps at bottom to reduce potential moves and avoid ripped the cover when travelling. even on traveling at high speeds over 50 mph on a car,truck or RV.you also easy to stationary use for garage, patio, outside.

✅【Heavy Duty,Waterproof,Anti-UV Protection】 -- Thicker and durable ‘ripstop’ high densiny(2 x stronger) 600D Polyester Fabric with ‘double stitching’ & ’heat and waterproof sealed’ TPU seams delivering Top-Class outdoor protection from adverse weather conditions - whether rain, snow, ice, wind, dust or sun! Package includes high-quality backpack bag for convenient storage and travel use.Includes 2 YEARS WARRANTY.

✅【100% Windproof and Safety】-- It total have 6pcs buckle straps,4pcs windproof buckle straps(2pcs on top,2pcs on bottom) and bonus to 2pcs individual long wraparound bikes buckle straps, ’toggle’ wheel/tire fit for a snug and secure fit the bike like a glove,even on high windy days or high speeds of car.Front lock-hole design for either cable, chain or U/D-locks hole for extra security.Reflective safety loops to locate handlebar ends and allow for cover to be easily removed from the bikes.

✅【Dependable,Whatever The Bad Weather,and Cleaning Easy】-- 100% Waterproof,anti-fade,uv protection complex material with waterproof PU coating ensures your bikes stays 2x protected, even against heavy rain or harsh sun,breathable air vents keep a cover dry and reduce the inside of the cover temperature for summer,all weather and all season use for outdoor .The smooth fabric is easy to rinse off leaves ,stubborn stains, bird droppings,mud of water.