- Lightweight merino wool racerback top gives medium impact support for A and B cups, low impact for C cup
- Next-to-skin fit for layering under your gear
- Fabric 160g weight 96% natural merino wool, 4% elastene (4-way stretch)
- Flat seam stitching with comfortable elastic waitband
Product Description
The I/O Bio Merino Contact Top is not “just” a sports bra. Here’s a sports top ready to perform up to your highest level. Designed with medium impact support for A and B cup sizes, low impact support for C+ cup size. Great moisture management where needed, and keeps you comfortable in all activities…. More >>


I purchased the sports bra and boy briefs at the same time. I love the briefs! The bra is super soft and comfortable, but it is more for low impact activities. I run etc and I didn’t feel like it supports enough. I made the purchase for hiking so I believe it is sufficient for this activity.
Rating: 3 / 5
This sports bra is more than just a bra. It feels so good on, like you’re getting a hug! And it keeps you dry…cool and comfy. Wicks moisture away better than ANY I have ever used. EVER. I would highly recommend this sports bra without the slightest hesitation. Love it!!
Rating: 5 / 5