On Spreadshirt.ch, find the 'Männer T-Shirt' that is available in sizes up to 4XL. What is its base price per piece, excluding printing costs? List all sizes available for this specific T-shirt. Finally, state the duration of the return guarantee for this product.
Navigate to 'https://www.spreadshirt.ch/' Accept cookie preferences and select the Swiss domain if prompted. Navigate to the 'Produkte' (Products) section, specifically 'Alle Produkte' or 'Gestalten/Produkte'. Locate the 'Männer T-Shirt' product that lists sizes up to 4XL. Identify and extract the base price per piece, excluding printing costs, for this T-shirt. List all available sizes for this particular 'Männer T-Shirt'. Click on the 'Produktdetails' (Product details) link for this 'Männer T-Shirt'. Locate and state the duration of the return guarantee on the product detail page.
Successfully navigates to the product listing page and then to the specific product detail page for the 'Männer T-Shirt' available up to 4XL. States the base price as 'CHF 16.99' per piece, explicitly noting it excludes printing costs. Lists all available sizes as: S, M, L, XL, XXL, 3XL, 4XL. States that the return guarantee is '30 Tage' (30 days).