You will love this dress. Feels wonderful, looks sensational and will keep you cool and fashionable this Summer! Imported from the UK so don't worry about bumping into someone else wearing the same thing. Zipper at the back. Straps do not adjust but can easily be altered. Run true to size. 3XL is 44 inches at the bust with stretch it goes larger without altering the look. The waist is 36 inches with about an about an inch of movement. Each size goes down 2 inches at the bust and waist.