Cycling saddle bag easily connects under bike top tube with adjustable velcro straps for custom fit Big zippered opening mouth design for easy access, with durable zipper closure, Slim body design with high capacity to minimize the wind resistance Water and Weather-resistant strong and durable polyester material helps protect stored items

This medium saddle bag is part of the BV Y-Series that includes four different sizes: large, medium, small and extra small. This medium sized version with a big zippered mouth allows riders to bring along your necessary items while biking!

LARGE SPACE: Bike bag has enough inside room for long rides, holds a lot of stuff like iphone X, battery, energy gel, small tire pump, repair kits, keys, wallet etc. Perfect compatible with cellphones below 6.5 inches, iPhone XR XS MAX X 8 7 6s 6 plus 5s / Samsung Galaxy s8 s7 note 7, shake-proof bike front frame bag HIGH SENSITIVE TOUCH SCREEN: The bike phone bag has a high sensitive TPU film window which can helps you use cellphone easily while riding, great way to see your activity while using maps on a ride. (Note: Touch ID NOT worked through the screen cover) HUMANIZATION DESIGN: The bike phone mount bag has many humanization designs. A, The hidden earphone hole allows you answer the phone or enjoy music freely while cycling. B, reflective tapes on both sides of bike bags to keep your night ride safety. C, dual soft rubber zipper pulls make it convenient to open & close

Max 45L Large Capacity: ROCKRBOS trunk bag has roomy cushioned interior can hold a lot of stuff, such as bike tools, shoes and extra clothing. Adjustable dividers making it conceivable to carry large cameras. 16L-45L capacity, many options for expansion. Versatile & Portable: Expandable double side bike panniers are hided by zippers and available when needed. You can unzip the expansion and fit clothes and shoes in the trunk bag. There are also shoulder and hand straps for carrying the rockbros bike bag with you. Sturdy Construction & Durbale: Well made and compact, strong material, good stitching and zippers function smoothly. Hold plenty for daily commuting and a day trip, handy for shopping at the store.

SPECIAL SHAPE and UPGRADE STRAPS:3D shell saddle bag with wave cushion provides inside shock resistant protection if fell out.Upgrade straps make up for the deflective old ones and support lifetime warranty RAINPROOF:Waterproof fabric with taped zipper for rain.Do not soak this seat bag in the water for a long time( stitches are not waterproof ) EASY TO INSTALL:2 stickup straps and a rubber buckle simplify mount system.Moreover , it keeps bag securely attach to seat post

WATER RESISTANT & STURDY: The bicycle rack bag is made of PU leather & polyester, which is durable, water repellent and easy to clean. It even comes with rain cover that completely helps protect the trunk and the stuffs in it from dirt, sand, water, rain and snow. 7L CAPATITY: Our bike carrier bag includes a main compartment, a extra top zippered pocket and adjustable elastic cord, which helps keep your riding essentials well organized. Dimension of 11.81 x 6.69 x 4.72inch (L x W x H), 7l capacity enough to contain wallet, phones, power bank, small speaker, towels, T-shirt,food, drinks,bike locks , small tools, water bottles, sunglasses etc.

Completely Waterproof: Made of waterproof leather fabric, super durable and fully waterproof, it is tear, abrasion and heat resistant to perfectly protect your belongings. Double protection for your outdoor rides in rainy weather as well as tough outdoor conditions. Multiple Storage Spaces: The main body of the bicycle bag has a large capacity of 22L, and there are abundant built-in compartments, which can easily store computers, ipads, clothes, shoes, etc., and can accommodate a 15-inch laptop. The left and right mesh pockets can hold water bottles. Hidden helmet cover at the bottom provide more storage space.

2022 New Upgrades: The bike phone mount bag has many new upgrades. A: using X EVA material, more sturdy. B: The super high reflective tapes on both sides of the bag help you ride safely at night. C: larger size, can hold all smartphones. Large Space: The E-bike bag has enough inside room for cycling, holds a lot of stuff like iphone 13 pro max, power bank, energy gel, keys, wallet, repair tools etc. Perfect compatible with cellphones below 6.9 inches, like iPhone 13 Pro Max / 13 Pro / 13 / 12 Pro Max / 12 Pro / 12 / 11 Pro Max / 11 Pro / 11, Samsung Galaxy S22 S21 Ultra / S21+ / S21 / S21FE / S20 / 20, The perfect cycling accessories, Face ID supported.