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  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
  • Pro-Light Waterproof Sling Bag - 4 Litres | OB1214BLK
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Pro-Light Waterproof Sling Bag Backpack - 4 Litres

Pro-Light Waterproof Sling Bag Backpack - 4 Litres

£31.79
£52.99 £31.79
Color: Black

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IP66 - Quick Submersion

Eco-Friendly Packaging

5 Year Extended Warranty
  • 100% waterproof protection: Compact, hands-free carry keeps your essentials dry during paddleboarding, kayaking, or any water-based adventure.
  • Best in class: Lightweight TPU fabric and HF welded seams deliver durable, waterproof performance when every ounce counts on land or water.
  • Feature packed: Waterproof zip pocket, reflective strip, padded and stabiliser straps, accessory pocket, and cushioned air-flow back panel.
See specs & sizing
VIEW FULL PRODUCT DETAILS

Pro-Light Waterproof Sling Bag Backpack - 4 Litres

Color: Black
£31.79
£52.99 £31.79

KEY FEATURES

  • QUICK ACCESS POCKET

    QUICK ACCESS POCKET

    Weatherproof front zip accessories pocket (IP65).

  • WATERPROOF SEAL – IP66

    WATERPROOF SEAL – IP66

    100% waterproof main compartment and can handle quick submersion.

  • PADDED STRAP

    PADDED STRAP

    Comfortable and fully adjustable with a reflective patch & D-ring.

  • HF WELDED SEAMS

    HF WELDED SEAMS

    High Frequency welded construction for a super tough waterproof bond.

  • STABILISER STRAP

    STABILISER STRAP

    Detachable and fully adjustable stabiliser strap to ensure a snug fit.

  • INTERNAL POCKET

    INTERNAL POCKET

    Elasticated mesh accessory pocket - H: 9cm x W: 18cm (4L) H: 12cm x W: 23cm (8L)

  • PADDED BACK

    PADDED BACK

    Comfortable and breathable mesh panel for a comfortable fit.

  • QUICK RELEASE STRAP

    QUICK RELEASE

    Unclip the tuck away buckle for quick removal of the sling bag.

Tech spec

Waterproof top or side Fold Seal System™
Submersible main compartment (IP66)
HF welded seams
Lightweight eco-friendly TPU fabric
Weatherproof zip pocket (IP65)
Reflective front strip
Side seal compression straps × 2
Movable side stabiliser strap padding
Reflective strap and D-ring
Shoulder strap quick release buckle
Padded and breathable shoulder strap
Stabiliser strap vertical adjustment runner
Adjustable and detachable stabiliser strap
Padded and breathable back mesh panel
Internal elasticated mesh pocket - H:9cm × W:18cm

Select a dot on the image to see the technical features

Product details

DESCRIPTION

The OverBoard 4 Litre Pro-Light Waterproof Sling Bag Backpack is made from lightweight, eco-friendly TPU fabrics and seals tight with our Fold Seal System™, making it perfect for quick submersion and floating if dropped in water.

Packed with features, it includes a padded crossbody shoulder strap, stabiliser strap, reflective front strip, padded mesh back panel, an internal accessories pocket, and a weatherproof zip front pocket—making it the ideal waterproof bag for any water-based activity.

#Keep it dry!

SEALING

 

1ROLL NECK TIGHTLY

Roll neck tightly towards the front of the waterproof sling bag 3 times.

Roll Neck Tightly

2ATOP SEAL

Bring ends together and clip buckle to securely fasten and create a waterproof seal. (IP66).

Top Seal

2BSIDE SEAL

Connect buckles at each side and pull compression straps to securely fasten and create a waterproof seal. (IP66)

Messenger Seal
FEATURES
  • 100% Waterproof main compartment - Class 3: IP66
  • Weatherpoof front zip pocket - Class 2: IP65
  • Padded shoulder strap with reflective patch and D-ring
  • Shoulder strap connector buckle for easy removal
  • Two-way sealing system (top or side)
  • Made from eco-friendly and lightweight TPU fabrics
  • Seamless high frequency welded construction
  • Padded mesh fabric back for a comfortable fit when worn
  • Detachable stabiliser strap to ensure a snug fit
  • Internal elasticated accessories pocket – H: 9cm x W: 18cm
  • Reflective front strip
  • Floats if dropped in water
  • Keeps out dust, sand, dirt and water
SIZING

SEALED DIMENSIONS

HEIGHT
28cm / 11"
WIDTH
15cm / 5.9"
DEPTH
8cm / 3.1"
CAPACITY
244 cubic inches
WEIGHT
0.33kg
Fully sealed dimensions using the roll-top method.
Classic Waterproof Backpack Size Guide
DELIVERY

We offer the following UK mainland delivery options:

Standard Delivery (2–5 business days): £3.95
Orders are shipped using Royal Mail, FedEx or another suitable delivery partner depending on the size, weight and destination of your order.

Express Delivery (1–2 business days): £8.95
Express orders placed before 2pm Monday to Friday are prioritised and dispatched the same working day. Express deliveries are made on business days only (Monday to Friday).

💡 Enjoy FREE Standard Delivery on all orders over £75 and upgrade to Express Delivery for just £5.

FREE RETURNS

We want you to shop with confidence — that’s why all UK orders now come with FREE returns via InPost.

 

If something’s not quite right, simply email us at support@overboard.com to start your return, then drop your parcel at a nearby InPost locker — no labels, no queues, and no cost.

 

You’ll have 30 days to return or exchange your item, as long as it’s unused and in its original packaging.

 

Learn more about our Returns Policy.

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