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Product guide

Eyein 8 L Bike Rear Rack Bag

The Eyein bike rear rack bag is an 8 L bicycle storage bag with reflective detailing, multiple pockets and a claimed rain cover. Its rack-strap mounting and carry options suit riders who want to take a compact load off the bike after a ride.

At a glance

8 L capacity in a 38 × 16 × 16 cm format, with a main compartment, side pockets, an upper zip pouch and inner mesh pockets claimed in the listing.
Reflective surface and a rear loop intended for a separately purchased tail light.
Four adjustable hook-and-loop straps are claimed for tool-free fitting to most bicycle racks.
The listing describes a removable shoulder strap and a handle for carrying the bag off the bike.

Price

£21.24Save 15%

Reference price: ~~£24.99~~

Price checked: 13 Nov 2026

View offer

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Pros and cons

Pros

Several listed storage areas help separate small essentials rather than placing everything in one compartment.
Reflective detailing and a tail-light attachment loop add visibility-oriented features, although neither guarantees safer riding.
The claimed shoulder strap and handle provide carrying options away from the bicycle.

Cons

The 8 L capacity is modest for riders who need to carry bulky clothing or larger loads.

Technical specifications

11 specifications

Identity
Brand	Eyein

Capacity and dimensions
Capacity	8 litres
Dimensions (L × W × H)	38L x 16W x 16H centimetres
Compartments	6

Materials and protection
Material listed	Oxford fabric
Water resistance listed	Water Resistant
Shell	Soft

Fitting and carry
Mounting type listed	Seat Mount
Strap type	Adjustable
Closure	Zipper
Handle	Web Handle

What to know before buying

Listing details to confirm

The listing describes the fabric and zip as rainproof or waterproof, while its technical details say only “Water Resistant”. A separate rain cover is claimed, but no protection rating or test conditions are supplied, so consider the cover for wet-weather use and do not treat the bag itself as fully waterproof. The listed six compartments are not clearly reconciled with the separately described pocket layout. Check the selected listing for the rain-cover and shoulder-strap bundle.

What’s in the box

Rain coverCheck selected pack
Shoulder strapCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Cyclists who want a compact rear-rack bag for everyday essentials and small tools.
Riders who value multiple pockets, reflective detailing and the option to carry the bag off the bike.

Less suited to

Riders needing high-volume luggage or a clearly rated waterproof bag for sustained heavy rain.

Eyein 8 L Bike Rear Rack Bag · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 195 ratings

5 stars74%74%
4 stars18%18%
3 stars4%4%
2 stars2%2%
1 star2%2%

Customer feedback highlights perceived good quality, useful capacity, a secure fit and positive experiences with the cover keeping contents dry. Those comments are relevant for everyday essentials, but they do not establish a waterproof rating or guarantee fit on every rack. The overall rating distribution is mostly five- and four-star, with a smaller share of lower ratings, so experiences are not uniform.

Positive themes

Customers are reported to appreciate the bag's capacity, fit and secure attachment.
Feedback describes the cover as keeping contents dry and the bag as durable.

Frequently asked questions

How much can the Eyein rear rack bag hold?

The listing gives a capacity of 8 litres and dimensions of 38L x 16W x 16H centimetres. This suits a compact load rather than bulky luggage.

Is the bag waterproof?

The listing uses rainproof and waterproof wording for some parts, but the technical details specify “Water Resistant”. It also claims a separate rain cover. No protection rating or test conditions are given.

How does it attach to a bicycle?

The listing claims four adjustable hook-and-loop straps for tool-free attachment to most bicycle racks. Actual fit depends on the rack and bag positioning.

Can it be carried off the bike?

The listing describes a removable shoulder strap and a handle, so it can be carried away from the bicycle if those items are included in the selected listing.