SZSYCN Vacuum Backpack Travel Bag With Pump Ryanair Cabin Bags 40x30x20 Underseat Ryan Air Hand Luggage 40 x 20 x 25 Carry On Baggage For Flights Backpack With Compression System

The SZSYCN is a vacuum compression backpack competing directly with the BJLFS. Same concept: pack your clothes, pump the air out, fit more into a Ryanair-sized bag. 684 reviews at 4.4 stars. The title claims it fits both Ryanair's 40 x 30 x 20 and 40 x 20 x 25 dimensions, which suggests the bag is adjustable or at least soft enough to squash down.

SZSYCN vs BJLFS

Both are 40 x 30 x 20 cm vacuum backpacks with included pumps, waterproof material, and similar layouts. The BJLFS has 2,100+ reviews to the SZSYCN's 684, so more people have tested it over time. The SZSYCN has a one-way suction valve which some people find easier to use than the BJLFS pump system.

In practice, both do the same thing. If one is cheaper or in stock when the other isn't, buy that one. Our best cabin baggage roundup compares these against non-vacuum alternatives.

The compression

Same principle as the BJLFS. Pack soft items, seal the compression pocket, pump out the air. Works well on clothes and towels. Doesn't help with shoes, toiletry bottles, or anything rigid. The one-way valve means air doesn't leak back in while you're pumping, which is a slight improvement over some competitor designs.

SZSYCN claim it meets most airline baggage allowances. For UK airline specifics, our UK airline baggage allowance guide has the exact numbers.

Organisation

Waterproof compartment for wet items, side pockets for bottles, laptop-compatible main compartment, luggage strap on the back for attaching to a trolley handle. Padded shoulder straps. Standard layout for this type of bag.

The dual-size claim

The listing says both 40 x 30 x 20 and 40 x 20 x 25. These are different shapes. The bag is likely 40 x 30 x 20 when fully loaded and can be compressed to something closer to 40 x 20 x 25 when partially packed. Don't rely on that for strict airline checks. Our Ryanair vs easyJet baggage allowance comparison explains why the exact dimensions matter.

Who should buy this

If you've looked at the BJLFS and want to compare, this is the main alternative. Similar reviews, similar price, similar features. The vacuum compression concept works regardless of which brand you pick. Our how to avoid excess baggage fees guide has more strategies beyond buying a compression bag.