Boundary Supply Rift Sling vs Waterfly Defender Vekta RFID Crossbody Bag 4.5L
The Boundary Supply Rift Sling is 4.5L and 0.31kg0.7lb; the Waterfly Defender Vekta RFID Crossbody Bag 4.5L is 4.5L and 0.27kg0.6lb. The Waterfly Defender Vekta RFID Crossbody Bag 4.5L is 0.04kg0.1lb lighter. The Waterfly Defender Vekta RFID Crossbody Bag 4.5L costs $59.01 less. The Boundary Supply Rift Sling fits the carry-on limit of 36 of 36 major airlines and the Waterfly Defender Vekta RFID Crossbody Bag 4.5L fits 36; under the seat, 26 and 24 of 26.
| Spec | Boundary Supply Rift Sling | Waterfly Defender Vekta RFID Crossbody Bag 4.5L |
|---|---|---|
| Price | $94 | $34.99Best |
| Volume | 4.5L | 4.5L |
| Weight | 0.31kg0.7lb | 0.27kg0.6lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 100%Best | 92% |
| Dimensions | 15.2×27.9×7.6cm6×11×3in | 32×21.1×6.6cm12.5×8.5×2.5in |
| Laptop | no laptop sleeve | n/a |
| Bottle pockets | n/a | 1 |
| Opening | zip top | Zippered main compartment |
| Warranty | Lifetime | 10 years |
| Organizer | No | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | Insert sold separately | No |
| Material | Waterproof 400D HT nylon with TPU inner coating and DWR finish | Eco-friendly nylon with water-repellent finish, polyester lining |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Boundary Supply Rift Sling | Waterfly Defender Vekta RFID Crossbody Bag 4.5L |
|---|---|---|---|
| Cebu Pacific | Personal item | Fits | Too big |
| Vietjet Air | Personal item | Fits | Too big |
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Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.