Arena's ProBack style is my favourite for a wider strap style. Arena keeps the strap width to under 1" and without the bulk of some other brands. The back still overs great freedom of movement and the lower back is cut high enough to make you feel like you're not spilling out of your suit. This suit is 100% polyester so it will stand up to prolonged exposure to chlorine, making this a great option for swim training.
We love this placement print for a colour palette that is nice and bright without being too over-the-top.