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Top or Side Fold Seal System™ (IP66)
HF Welded Seams
Top seal safety strap
Lightweight eco-friendly TPU fabric
Front zip mesh pocket
Light reflective strip × 2
Large mesh pocket × 2
Large mesh pocket × 2
Elasticated webbing
Multiple D-rings
Internal welded zip pocket – H: 25cm × W: 21cm
Hydration pocket suitable for up to 3L reservoirs – H: 42cm × W: 19cm
Internal Velcro strip to attach Backpack Tidy
Ergonomic and breathable back panel
Padded straps with air-flow design
Reflective shoulder strap patch × 2
Adjustable backpack and sternum straps
Drainage hole for hydration pocket
Sternum strap whistle buckle
Adjustable and removable waist strap
  • 100% waterproof backpack - Class 3: IP66
  • Floats safely if dropped in water
  • Made from eco-friendly and lightweight TPU fabrics
  • Quick access front zip mesh pocket
  • 2 way sealing system (traditional top or side compression)
  • Protects contents from dust, sand, dirt and water
  • Quick access front zip mesh pocket
  • High Frequency welded construction
  • Padded shoulder straps and lumbar support
  • Ventilated back panel with air-flow design
  • Comfortable and buoyant light-weight straps
  • Ventilated straps with reflective patches
  • Adjustable waist and sternum straps
  • 2 x reflective front strips
  • D-rings for multiple attachment options
  • Internal zip accessories pocket - H: 25cm x W: 21cm
  • Dedicated hydration pocket suitable for up to 3L reservoirs - H: 42cm × W: 19cm
  • 2 x large elasticated mesh side pockets
  • Top carry handle

SEALED DIMENSIONS

HEIGHT
44cm / 17.3"
WIDTH
24cm / 9.4"
DEPTH
19cm / 7.4"
CAPACITY
1200 cubic inches
WEIGHT
0.79kg
Fully sealed dimensions using the roll-top method.
Pro-Light Waterproof Backpack Size Guide

 

1ROLL NECK TIGHTLY

Roll neck tightly towards the front of the waterproof backpack 3 times.

Roll Neck Tightly

2ATOP SEAL

Bring ends together and buckle to securely fasten and create a waterproof seal suitable for quick submersion (IP66).

Top Seal

2BSIDE SEAL

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

Messenger Seal

2CMESSENGER SEAL

Bring the top strap towards the front of the backpack and secure to the Velcro patch to create a foul weather and spray proof seal (IP65).

Messenger Seal
  • 1 x Pro-Light Waterproof Backpack - 20 Litre
  • 1 x Carbiner Clip
  • 1 x Instructions / Care Guide

Pro-Light Waterproof Backpack - 20 Litres

137.95

OB1135BLK
5 year extended warranty

PRODUCT DETAILS

The OverBoard 20 Litre Pro-Light Waterproof Backpack features seamless high-frequency welded construction and a simple 3-way roll-top sealing system (top, side & messenger), making it fully submersible and the ideal choice for water-based activities.

Made from feather-light, eco-friendly TPU materials, it’s designed for those who need to save every ounce. With a large front mesh zip pocket with reflective strips, padded shoulder straps, and an air-flow back panel, it’s a comfortable and practical backpack for cyclists and water sports enthusiasts.

Not sure which 100% Waterproof Backpack to choose? View our Key Features Comparison Guide.

Want to protect your laptop or tablet inside? Check out our Backpack Tidy.

#Keep it dry!

IP66 Waterproof Rating

Tech Specs

Select a dot on the image to see its technical features

Top or Side Fold Seal System™ (IP66)
HF Welded Seams
Top seal safety strap
Lightweight eco-friendly TPU fabric
Front zip mesh pocket
Light reflective strip × 2
Large mesh pocket × 2
Large mesh pocket × 2
Elasticated webbing
Multiple D-rings
Internal welded zip pocket – H: 25cm × W: 21cm
Hydration pocket suitable for up to 3L reservoirs – H: 42cm × W: 19cm
Internal Velcro strip to attach Backpack Tidy
Ergonomic and breathable back panel
Padded straps with air-flow design
Reflective shoulder strap patch × 2
Adjustable backpack and sternum straps
Drainage hole for hydration pocket
Sternum strap whistle buckle
Adjustable and removable waist strap

Product Features

  • 100% waterproof backpack - Class 3: IP66
  • Floats safely if dropped in water
  • Made from eco-friendly and lightweight TPU fabrics
  • Quick access front zip mesh pocket
  • 2 way sealing system (traditional top or side compression)
  • Protects contents from dust, sand, dirt and water
  • Quick access front zip mesh pocket
  • High Frequency welded construction
  • Padded shoulder straps and lumbar support
  • Ventilated back panel with air-flow design
  • Comfortable and buoyant light-weight straps
  • Ventilated straps with reflective patches
  • Adjustable waist and sternum straps
  • 2 x reflective front strips
  • D-rings for multiple attachment options
  • Internal zip accessories pocket - H: 25cm x W: 21cm
  • Dedicated hydration pocket suitable for up to 3L reservoirs - H: 42cm × W: 19cm
  • 2 x large elasticated mesh side pockets
  • Top carry handle

Size Guide

SEALED DIMENSIONS

HEIGHT
44cm / 17.3"
WIDTH
24cm / 9.4"
DEPTH
19cm / 7.4"
CAPACITY
1200 cubic inches
WEIGHT
0.79kg
Fully sealed dimensions using the roll-top method.
Pro-Light Waterproof Backpack Size Guide

Sealing Guide

 

1ROLL NECK TIGHTLY

Roll neck tightly towards the front of the waterproof backpack 3 times.

Roll Neck Tightly

2ATOP SEAL

Bring ends together and buckle to securely fasten and create a waterproof seal suitable for quick submersion (IP66).

Top Seal

2BSIDE SEAL

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

Messenger Seal

2CMESSENGER SEAL

Bring the top strap towards the front of the backpack and secure to the Velcro patch to create a foul weather and spray proof seal (IP65).

Messenger Seal

What's Included

  • 1 x Pro-Light Waterproof Backpack - 20 Litre
  • 1 x Carbiner Clip
  • 1 x Instructions / Care Guide
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BACKPACK TIDY & ORGANISER

Organise your electronics and personal effects with this Backpack Tidy and Organiser which is compatible with all OverBoard 100% Waterproof Backpacks.


CLICK HERE to view full product details.

PRO-LIGHT WATERPROOF BACKPACK KEY FEATURES

Pro-Light Backpacks 20 & 30

STERNUM STRAP

Fully adjustable sternum strap with whistle buckle on a horizontal slider to ensure maximum comfort.

Pro-Light Backpacks 20 & 30

LARGE SIDE POCKETS

Elasticated mesh design to accommodate large water bottles.

Pro-Light Backpacks 20 & 30

HF WELDED SEAMS

High Frequency welded construction for a super tough waterproof bond.

Pro-Light Backpacks 20 & 30

RESERVOIR POCKET

Dedicated hydration pocket suitable for up to 3L reservoirs with tube and mouth piece tidy on right strap.

Pro-Light Backpacks 20 & 30

INTERNAL POCKET

HF welded wet / dry pocket for storing precious items.

Pro-Light Backpacks 20 & 30

AIR-FLOW STRAPS

Ergonomically designed to be super comfortable with reflective patches.

Pro-Light Backpacks 20 & 30

QUICK RELEASE BUNGEE

Elasticated bungee system to securely store items you want quick to hand.

Pro-Light Backpacks 20 & 30

PADDED AIR FLOW PANEL

Comfortable water resistant and ventilated back panel with lumbar support.

100% WATERPROOF
100% WATERPROOF
100% SNOW PROOF
100% SNOW PROOF
100% DIRT PROOF
100% DIRT PROOF
100% SAND PROOF
100% SAND PROOF