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Size guide

Use the guide below to help choose the best fit for your T-shirt. Measurements are provided in inches and may vary slightly within the stated tolerance.

Measurement Guide
- Width: Measured across the chest, one inch below the armhole when laid flat.
- Length: Measured from the highest point of the shoulder to the bottom hem.
- Sleeve Length: Measured from the centre back of the neck to the sleeve hem.
- Size Tolerance: All measurements have an approximate tolerance of ±1.5 inches.
Fit Advice
- For a more relaxed fit, consider sizing up.
- Compare these measurements with a favourite T-shirt you already own for the most accurate fit.
- If you are between sizes, the larger size is usually the most comfortable option.
The Red Dragon of Wales is not just a symbol. It is a 1,500-year argument that Wales will not be erased.
This free illustrated guide tells the full story of Y Ddraig Goch in a single, beautifully designed portrait poster — from its origins in the contested legend of Merlin at Dinas Emrys, through Owain Glyndwr's rebellion, Henry Tudor's march to Bosworth, and the Victorian national revival, to the moment it was formally raised on the Welsh flag in 1959.
The poster is built for anyone who wants to understand the dragon, not just display it. It covers the genuine historical debates: Roman cavalry standards, Celtic serpent symbolism, and medieval political myth-making — all the competing explanations historians still argue about today. It names what history gets wrong, what the chroniclers exaggerated, and what the symbol actually meant to the people who carried it.
Five sharp observations from historians. A timeline of key moments from the 5th century to 1959. A visual breakdown of the dragon's defining traits: Defender of the Land, Fearless, Royal Connection, Timeless. And the Prophecy of Merlin, rendered in full.
Whether you teach Welsh history, study it, or simply live inside it, this is a resource worth keeping. Print it A3 for a classroom wall, A4 for a desk, or keep the PDF on file for whenever the argument starts.
It is free. It is yours. Download it now and keep the dragon alive.
Read All About The Welsh Dragon
- Historical Origins of the Welsh Dragon
- The Welsh Dragon in Battles and Warfare
- The Red Dragon of Wales: Myth, History and the Making of a National Symbol
- Legends and Myths Surrounding the Welsh Dragon
- National Symbol and Mythical Legend
- The Mythology of the Welsh Dragon
