These are the original Vickers design Sails, now manufactured by Ian's friend and associate Reuben Muir, sailmaker and co-owner of Wings & Waves Ltd. 
 

Shipping Tubes
If you are having your sails posted / couriered to you, you need to order a shipping tube along with your sails. 

https://www.wingsandwaves.co.nz/product-page/shipping-tube-for-sails