You may see a note on the product that states that an item is excluded from Express Delivery.
To allow for access to an even bigger range of products from the biggest outdoor sports and trail brands, Unfortunately there are certain shipping restrictions and items based in alternative warehouses which means that we are unable to ship some items with express delivery. Standard delivery is still available on these items and you will be provided a tracking number to track your order via the tracking page of the designated Shipping provider.
Please note that this is only in relation to UK Shipments and will not impact any international orders.
If there are any questions in regards to this please Contact Us and we are happy to help.