comparisons
Evolution Fishing Backpack 3600 vs 3700
Choose Evolution Drift 3600 when your active tackle uses smaller trays and you want a more compact version of the open-stack layout. Choose Drift 3700 when larger organizers are genuinely useful. Both center the design on accessible tackle trays. Changing size does not turn the exposed tray area into a sealed dry compartment.
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The Blue 3600 card matches the standard Drift 3600 family. The Coyote 3700 card matches the Drift 3700 size, but Evolution currently uses Coyote for its Battle Pack line while the retained Amazon title omits that label. Confirm the selected variant, upper-compartment tray size and included bundle before ordering.
Evolution Outdoors 34014-EV: 3600 Drift Tackle Backpack - BlueCheck Amazon offer 
Evolution Fishing Drift Series 3700 Tackle Backpack with QuikLatch System & 2 Rod Holders – Coyote, Heavy Duty Backpack w/ 6 Tackle TraysCheck Amazon offer Side-by-side buying comparison
| Model | Capacity | Trays | Rod holders | Water protection | Offer |
|---|---|---|---|---|---|
| Evolution Drift Series 3600 | Not confirmed | 3600 / 3500 · 6 trays | Not confirmed | Waterproof, non-slip PVC bottom; open tray access does not provide a waterproof enclosure. | Check Amazon offer |
| Evolution Drift Series 3700 | Not confirmed | 3700 / 3600 · 6 trays | Not confirmed | Waterproof, non-slip PVC bottom; open tray compartment is not sealed against rain or immersion. | Check Amazon offer |
The two current Drift sizes use different tray systems. Tray-family names and pack dimensions help shortlist a model, but they do not supply the exact dimensions of every third-party organizer or prove that it will latch, stack and remain accessible.
Compare the approaches
| Decision | First option | Second option |
|---|---|---|
| Main tray format | Six 3600 QuikLatch trays are included; the open main stack is sized for up to six 3600 trays. | Six 3700 QuikLatch trays are included; the open main stack is sized for up to six 3700 trays. |
| Upper storage | The top compartment is described for up to four 3500 trays. | The top compartment is described for up to four 3600 trays. |
| Published exterior size | 15 × 18.75 × 8.5 inches (length × height × depth). | 17 × 22 × 9.5 inches (length × height × depth). |
| Compatibility guardrail | Start with the included 3600 format, then measure nonstandard replacement boxes rather than relying on the family name. | Evolution excludes Ballistix 3.7, 3.7 HANGR and its Terminal Tackle Tray; the 3500 Terminal Tray is listed as compatible. |
| Water boundary | A waterproof bottom protects the base; the visible front tray stack is not a sealed dry compartment. | A waterproof bottom protects the base; the visible front tray stack is not a sealed dry compartment. |
| Stop rule | Skip it if the smaller trays cannot hold the lures you regularly carry. | Skip it if its larger exterior or stated tray exclusions conflict with your storage system. |
Choose the tray family first
Taking inventory of your existing boxes is more useful than starting with the biggest pack. A 3600 system can support a focused collection with less unused compartment area around smaller lures. A 3700 system can make sense for longer baits or a collection already organized in that format.
Do not translate larger boxes directly into better fishing coverage. Compare the presentations you need during an ordinary outing. If extra space mainly stores duplicates, the smaller system may let you move more comfortably without giving up useful choices.
What changes between the current models
The official current 3600 page specifies six included 3600 QuikLatch trays in the main stack and room for four 3500 trays above. The 3700 page specifies six included 3700 QuikLatch trays with room for four 3600 trays above. Those counts describe the named Evolution layout and current package, not remaining personal-cargo volume or third-party tray compatibility.
The current manufacturer dimensions are 15 by 18.75 by 8.5 inches for the 3600, and 17 by 22 by 9.5 inches for the 3700, labeled length, height and depth. These are pack exteriors, not tray-bay measurements. Compare storage and carried bulk with those figures, then separately check the exact organizers and removal path.
Do not transfer the standard 3600 top layout to Battle Pack
Evolution's standard 3600 page lists four 3500 trays in the upper compartment, while the separate Coyote/Tiger Stripe Battle Pack 3600 page lists four 3600 trays there. Both pages list six included 3600 QuikLatch trays and the same 15 by 18.75 by 8.5-inch exterior, so the family name and size alone do not resolve that upper-compartment difference.
The retained Blue 3600 card aligns with the standard color family. The retained Coyote 3700 card aligns with Battle Pack colors, and its 3700 upper compartment is documented for four 3600 trays. Confirm the selected listing's complete variant name instead of using color as the only identity check.
Read the compatibility exception
Evolution excludes Ballistix 3.7, 3.7 HANGR and its Terminal Tackle Tray from the current 3700 bag, while listing the 3500 Terminal Tray as compatible. This is a concrete reason to check exact organizers instead of relying on similar naming.
For any replacement tray, measure latch projection and thickness as well as the footprint. A deep box can change how many fit vertically even when it slides into the opening. Use the included tray specification as a starting point, not a universal compatibility promise.
Decide whether open access suits your conditions
The layout makes the tray stack easy to identify and reach. It also means you need to consider exposure and individual box protection. A waterproof bottom addresses contact at the base; it does not seal the visible front stack against rain or immersion.
Keep sensitive personal cargo separately protected. If the principal problem is keeping clothing and electronics dry around deeper water, compare a sealed backpack category rather than expecting a size change within Drift to solve it.
Avoid a format change for one unusual trip
Keep the 3600 system if it carries your regular lures and only an unusual annual trip calls for larger boxes. Changing the everyday backpack also changes how you store and repack that collection at home. Price that organizer change alongside the bag.
Repeatedly squeezing long baits into the smaller trays is a different problem: a 3700 format may remove that daily repacking step. Lay out the lures that need the extra length and check the chosen boxes against Evolution’s exclusions. That establishes what the larger pack would carry before you commit to its larger exterior.
The practical verdict
Choose 3600 when it matches your current kit and the smaller exterior is useful on the route. Choose 3700 when the larger boxes materially improve lure organization and the full load is manageable. Before purchase, pack the exact tray selection you intend to use and leave room for the day’s personal supplies.
Questions about Evolution Fishing Backpack 3600 vs 3700
evolution fishing backpack 3600 vs 3700
The main difference is tray format and exterior size. Use the 3600 for a smaller-format kit and 3700 when larger boxes justify the extra bulk.
Do both Drift sizes include trays?
The verified current manufacturer pages list six QuikLatch trays. Confirm the exact retailer package before purchase.
Is the Drift 3700 compatible with every 3700 tray?
No. The manufacturer lists specific Ballistix and Terminal Tray exclusions. Check the exact organizer.