Please see below for size chart.
・Original Stitch - Men's Dress Shirt Size
・Original Stitch - Men's Casual Shirt & Relaxed Shirt Size
・Original Stitch - Men's Dress Jacket Size
・Original Stitch - Men's Dress Pants Size
・Pokémon Shirts - Men's Shirt Size
・Pokémon Shirts - Women's Shirt Size
・Pokémon Shirts - Kid’s Shirt Size
・Pokémon Shirts - Polo Shirts Classic Size (Unisex)
・Pokémon Shirts - Polo Shirts Sport Size (Unisex)
・Pokémon Shirts - Mask Size
・Pokémon Shirts - Bandana Size
・Pokémon Shirts - Apron Size
・ONE PIECE Shirts - Men's Shirt Size
・ONE PIECE Shirts - Women's Shirt Size
・ONE PIECE Shirts - Kid’s Shirt Size
・ONE PIECE Shirts - T-shirt・Sweatshirt
・ONE PIECE Shirts - Mask Size
・ONE PIECE Shirts - Bandana Size
Please see below for how to measure.
・Body vs. Shirt Sizing
・How do I measure my body correctly?