Fly Fishing Sling Pack – Waterproof Welded TPU Sling with YKK Airtight Zipper, IPX7, SL-F071

6 L welded TPU fly fishing sling pack with a YKK airtight zipper, UTX buckles, tool D-rings, rod-holder straps and a stabilising waist wing. 29 × 10 × 23 cm, about 0.7 kg. MOQ 300.

At a Glance

Product Description

SL-F071 is a fly fishing sling pack measuring 29 × 10 × 23 cm (11.4 × 3.9 × 9.1 in) and holding about 6 litres, with an empty weight of about 0.7 kg. The main compartment is a flat, box-shaped body in TPU-laminated nylon with a tonal black camo print, and its seams are high-frequency welded. It opens on a YKK airtight zipper that runs around the top and down one side, so the compartment opens wide enough to reach fly boxes and tippet spools without unpacking. On the front, a vertical webbing strip carries two D-rings for forceps, nippers and a retractor, and two pairs of rod-holder straps with pull tabs hold a rigged rod against the pack when both hands are needed. The back has a padded mesh panel. The pack is carried on a padded sling strap, and a wide padded waist wing with a UTX buckle wraps around the torso to hold it steady. A small slip pocket on the wing holds a phone or licence. All buckles are UTX.

Built for the River

A sling pack has to do two things a backpack cannot: swing round to the front for a fly change without being taken off, and stay out of the way while wading and casting. On SL-F071, the sling strap lets the pack rotate from the back to the chest in one movement, and the waist wing locks it in place once it is back behind you, so it does not slide forward on a back cast or shift when you lean into a current. The D-rings keep tools on the outside where they can be reached with one hand, and the rod-holder straps free both hands to net a fish, tie a knot or cross deeper water.

Construction and Water Behaviour

The main compartment is high-frequency welded, so its seams are fused rather than stitched and have no needle holes. The webbing strip, rod-holder straps and harness anchors are mounted on welded patches. The sling strap, waist wing and back panel are sewn, which is how they get their padded, contoured shape.

Engineering Specifications

Material Specifications

Functional Specifications

Customization and OEM

Packaging Specifications

Recommended Use

• Fly fishing
• Wading
• Shore and bank fishing
• Kayak fishing
• Hiking to remote water

Built to carry fly boxes, tippet, leaders, floatant, a phone and keys while wading. Not intended as a full-day pack for large loads.

Quality Inspection Standards

Every production run is checked at IQC, IPQC and OQC. The suite covers load testing to 1,500 cycles on the sling strap and waist wing, zipper fatigue to 3,000 cycles, tensile and bonding strength on welded seams and anchor patches, D-ring and buckle pull tests, salt-spray on metal hardware, abrasion, colour fastness and print colour difference against the approved sample, and full water-immersion testing on finished packs. Third-party inspection by SGS or QIMA can be arranged at the buyer's cost.

Product Highlights

Welded TPU main compartment with a YKK airtight zipper, IPX7. Wide-opening zipper for fast access to fly boxes. Front D-rings for tools and two pairs of rod-holder straps. Sling carry that rotates to the front, with a waist wing that locks the pack in place while wading and casting. UTX buckles throughout, padded mesh back panel. Tonal black camo print, MOQ 300.

Printing and Logo

Screen printing suits solid one- to two-colour marks on the camo print and resists UV and abrasion. Heat transfer handles multi-colour artwork. Welded TPU patches and raised silicone prints give a tonal mark that suits the dark finish, and woven labels can be sewn onto the sling strap or waist wing. Custom camo and all-over prints are printed on the TPU before cutting. Artwork is required as vector files; a digital placement proof is returned before sampling.

OEM / ODM Capability

Sealock has manufactured waterproof fishing and outdoor gear for over 20 years, with factories in Guangdong, China and Ho Chi Minh City, Vietnam — the second site giving brands a non-China origin option where tariff exposure matters. We hold ISO 9001, BSCI, SMETA, Higg, GRS and SCAN certification, and produce for fishing brands including SIMMS, ORVIS, AFTCO and PENN.

The main compartment is high-frequency welded, while the sling strap, waist wing and back panel are sewn, and sewn construction is an equally mature in-house capability rather than an outsourced step. A fishing sling depends on both. Most demanding requirements can be met, from a print and logo change to fly patches, net holders, a larger body or full custom development; complex development with new tooling adds time to the first sample cycle, which is worth planning for early.

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• 8L Waterproof Sling Backpack with YKK Zip
• TPU Waterproof Fishing Tool Bag

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