Sassetta, scomparti del polittico di sansepolcro, 1437-44
It shows the moment when Saint Francis renounces his father (who had tried to dissuade him from following the religious life) by symbolically removing in public the rich clothes his father had given him and taking naked refuge in the arms of the Bishop of Assisi.
Ultra PE birdseye is made of UHMWPE which is known for having a really good strength-to-weight ratio, abrasion resistance and overall durability. Only downside is that it’s only water-resistant and not fully waterproof.