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Sonik Smartstack Storage Box Medium

£17.99

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Anglers Serving Anglers

Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.

You can return unused standard items within 30 days for exchange or refund.

We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do. 

This item is available for next day delivery. You can pick this in the checkout.

We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.

We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.

Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.

You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.

SKU – VC0017

Product Details and Uses

Sonik Smartstack Storage Box Medium: Modular Organization for the Modern Angler

At Gerry’s Fishing, we understand that efficient organization can make or break a long session. The Sonik Smartstack Storage Box (Medium) is a robust, weatherproof solution designed to streamline how you store and transport your essential gear. With a 36-litre capacity, this mid-sized model is the versatile “engine room” of the Smartstack range, offering ample space for bulkier items like clothing, cooking equipment, or large tackle pouches while remaining compact enough to slide under most standard bedchairs.

The beauty of the Smartstack system lies in its modularity. Each box features interlocking bases and recessed lids, ensuring they stay securely in place when stacked on a barrow, in the back of a van, or on a boat. The tough, weatherproof plastic protects your gear from the elements, moisture, and dirt, giving you peace of mind that your spare clothes or sensitive electronics will remain dry and protected.


Technical Specifications

The Medium Smartstack is built for durability and high-volume organization:

Feature Specification
Model Sonik Smartstack Storage Box – Medium
Capacity 36 Litres
External Dimensions 60cm (L) x 40cm (W) x 21cm (H)
Material High-Impact, Weatherproof Plastic
Stacking System Interlocking Bases & Recessed Lids
Handles Dual-Function Side Clips / Carry Handles
Compatibility Modular with Small (16L) and Large (66L) models

Key Storage & Durability Features

  • Modular Stacking Design: The lids and bases are specifically engineered to “lock” into one another. This prevents boxes from sliding around during transport, making them ideal for high-load barrow journeys or organizing the boot of your car.

  • Weatherproof Construction: The heavy-duty plastic and secure lid design act as a barrier against rain, damp, and dust. This is a game-changer for boat anglers or those fishing in exposed swims where gear is prone to getting wet.

  • Low-Profile Height (21cm): The Medium and Small models share a 21cm height, which is specifically designed to fit underneath the majority of modern fishing bedchairs. This maximizes the usable space inside your bivvy and keeps your swim clutter-free.

  • Dual-Purpose Side Clips: The heavy-duty clips do more than just lock the lid; they are shaped to function as ergonomic carry handles, allowing you to move heavy loads comfortably even with wet hands.

  • Transparent Option: Depending on the specific variant, these boxes allow for a quick visual inventory of your gear without needing to open the lid, saving you time when searching for specific items.

  • Tough Utility: Beyond tackle, these are perfect for “dry food” storage, keeping your bait away from rodents, or as a dedicated “tech box” for power packs and camera gear.


The Smartstack Range Overview

The Medium box sits perfectly in the middle of a three-tier system, allowing you to mix and match sizes to create your ultimate storage layout:

  • Small (16L): 40cm x 30cm x 21cm – Ideal for end tackle, lead bags, and accessories.

  • Medium (36L): 60cm x 40cm x 21cm – The perfect all-rounder for clothing, towels, and food.

  • Large (66L): 60cm x 40cm x 36cm – Designed for bulky items like sleeping bags, coats, or heavy bait loads.

Gerry’s Pro Tip: Because the Medium model is 60cm long, it is wide enough to store most modern “long” tackle boxes or rig boards flat. We recommend using the Medium box as your primary “Bivvy Base”—keep it under your bedchair for your everyday essentials, and stack a Small (16L) box on top for the smaller bits you need to access more frequently

Anglers Serving Anglers

Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.

You can return unused standard items within 30 days for exchange or refund.

We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do. 

This item is available for next day delivery. You can pick this in the checkout.

We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.

We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.

Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.

You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.

SKU – VC0017

Chest Size Guide

Penn Chest Size Guide

Small (36″-37″)

Medium (38″-40″)

Large (42″-44″)

XLarge (46″-48″)

XXLarge (50″-52″)

Wader Waist Guide

Small (28″-30″)

Medium (30″-33″)

Large (34″-37″)

XLarge (37″-39″)

XXLarge (39″-42″)

3XLarge (42″-45″)

Kinetic/Westin Chest Size Guide

Small (36″-37″)

Medium (38″-40″)

Large (42″-44″)

XLarge (46″-48″)

XXLarge (50″-52″)

3XLarge (54″-56″)

Grundens Chest Size Guide

Small (36″-37″)

Medium (38″-40″)

Large (42″-44″)

XLarge (46″-48″)

XXLarge (50″-52″)

3XLarge (54″-56″)

Vass Chest Size Guide

Small (36″-38″)

Medium (38″-41″)

Large (42″-44″)

XLarge (45″-46″)

XXLarge (47″-48″)

3XLarge (49″-51″)

Trakker Chest Size Guide

Small (38-40″)

Medium (41-43″)

Large (44-46″)

Xlarge (47-49″)

XXLarge (50-52″)

XXXLarge (53-55″)

Korda Chest Size Guide

Small (36″-38″)

Medium (38″-41″)

Large (42″-44″)

XLarge (45″-46″)

XXLarge (47″-48″)

3XLarge (49″-51″)

Guy Cotten Chest Size Guide

Small (86 – 94cm)

Medium (94 – 102cm)

Large (102 – 110cm)

XLarge (110 – 124cm)

XXLarge (124 – 134cm)

3XLarge (134 – 154cm)

Fox Chest Size Guide

Small (36″-38″)

Medium (39″-41″)

Large (42″-44″)

XLarge (45″-47″)

XXLarge (48″-50″)

3XLarge (51″-54″)

4XLarge (55″-60″)

Nash Chest Size Guide

Small (36″-38″)

Medium (39″-41″)

Large (42″-44″)

XLarge (45″-47″)

XXLarge (48″-50″)

3XLarge (51″-54″)

4XLarge (55″-60″)

Aqua Chest Size Guide

Small (38-40″)

Medium (41-43″)

Large (44-46″)

Xlarge (47-49″)

XXLarge (50-52″)

XXXLarge (53-55″)

Guru Chest Size Guide

Small (36″-38″)

Medium (38″-41″)

Large (42″-44″)

XLarge (45″-46″)

XXLarge (47″-48″)

3XLarge (49″-51″)

Preston Chest Innovations Size Guide

Small (36″-38″)

Medium (38″-41″)

Large (42″-44″)

XLarge (45″-46″)

XXLarge (47″-48″)

3XLarge (49″-51″)

Trouser Waist Guide (Inches) 

Small – 28″ – 32″

Medium 32″ – 34″

Large – 34″ – 36″

X-Large 36″ – 38″

XX-Large – 38″ – 42″

XXX-Large 42″ – 46″

XXXX-Large 46″ – 52″