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  • Soft Plyo Box 2 Soft Plyo Box 2
  • Soft Plyo Box Numbered Heights Soft Plyo Box Numbered Heights
  • Soft Plyo Box Zip Soft Plyo Box Zip
  • Soft Plyo Box Jump Soft Plyo Box Jump
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Plyo Soft Box - 3 Heights

Quick Overview

Build confidence in athletes straight out the box.


A shin saving alternative designed to eliminate any fears of scraping your shins on a missed rep and softening the landing perfect for absolute beginners, kids and rehabilitation.

A space saving phenomena, use the plyo soft box at heights of 20", 24" & 30". Comprised of exactly the same birch plyo-box frame as our wooden plyo boxes but encased in a double layer of foam and a 3mm protective gray vinyl casing which has been double stitched at the seams. CNC machined for a perfect fit with center bracing for extra strength.

Ships pre-built and ready for action straight out of the box.


  • Comprised of the same strong birch plywood we use for our 3-in-1 Plyo-boxes including the center brace. 
  • Heights are clearly displayed in each corner
  • Encased in a 3mm tough grey vinyl cover which provides durability, longevity and is easy to clean
  • The soft box weighs 22kg keeping it light enough to move about before and after workouts


We stand by every one of our products so much so that we back it up by a 100% Peace Of Mind guarantee. Our products meet professional specifications and undergo specific in house testing. We only provide high quality equipment.

30 Day 100% Peace Of Mind Guarantee

We trust in everyone of our products to fulfil and meet your expectations. If you are not 100% happy with your products due to a fault or poor workmanship, you can return your NEW and UN-USED Strength Alliance products for a full refund with in 30 days of the delivery date. All items returned must be in a new and unused state and must include all of the original packaging. If packaging is not available then you will be charged. Strength Alliance will not be responsible for return charges unless the item has a manufacturing defect.

Find out more about our warranties.

We offer a range of delivery options, depending on the product you’re buying and where you would like your order delivered. Find out more about our delivery options and returns policy below.

Standard Delivery: Although we aim to get every order to you within 48hrs please allow 2-3 business days for delivery. Standard delivery from £7.50 inc-VAT.

Saturday Delivery: If Saturday Delivery is available for the products in your basket we’ll offer you this option at checkout. 

For large or heavy items we currently offer a kerbside pallet drop only. Prices start from £50.00 inc-VAT. recipients must be available to ccept the delivery between the hour of 9am-4pm unless other arrangements have been confirmed.

UK postcode exceptions: Free and Saturday delivery options are currently not available to the following postcodes beginning with: BT, KA27, KA28, FK18-FK21, HS1-HS9, IV1-IV63, PA20-PA88, PH17-PH50, KW1-KW17, PO30-PO41, ZE1, ZE2, ZE3, IM, IOM, JE and GY. Postcode exception areas include Scottish Highlands & Islands, Isle of Man, Channel Islands and Northern Ireland.

Returns Policy: You have 7 working days, from receipt of cancellable goods, to notify us if you wish to cancel your order or exchange an item. For more information on our returns policy please click here.