Men's High Visibility Waterproof CE Armoured Motorcycle Textile Jacket

i have a 60 inch chest/abdomen. Which size would i need?

Can this jacket be washed in machine? If not how would you recommend I clean it as mine is filthy. Thankyou

Do I need to order larger than chest size to compensate for under layers of clothing?

What size box does the jacket and trousers come in,is it smaller than 41 × 38 × 64 cm?