Our new 2015 sweaters are made extra thick and warm. They come in 7 designer colors and styles with adorable embroidery patterns. All dogs need to be warm in winter so we expanded our size range to fit tiny and large breeds. They are made with durable acrylic. Machine wash and air dry. Sizes range from XXS through 3XL. Important Sizing Note: The measurements provided are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the dimensions provided (with a little room to spare in the chest and neck). Size: XX-Small - Chest 10” Neck 7” Weight (Lbs) 1-3; Size: X-Small - Chest 12” Neck 8” Weight (Lbs) 3-6; ize: Small - Chest 14” Neck 11” Weight (Lbs) 6-10; Size: Medium - Chest 17” Neck 12” Weight (Lbs) 11-16; Size: Large - Chest 22” Neck 15” Weight (Lbs) 16-30; Size: X-Large - Chest 24” Neck 18” Weight (Lbs) 30-45; Size: 2X-Large - Chest 32” Neck 20” Weight (Lbs) 44-70; Size: 3X-Large - Chest 40” Neck 24” Weight (Lbs) 70-100