These are nice underwear and customer service was very accommodating, but there are a couple big issues with the leakproof underwear. The sizing for the small leakproof lace thong was huge, at least two sizes too big. The leakproof lace bikini and cheeky were sized appropriately. The biggest issue is that, while these are comfortable underwear and I wear them regularly (great for leaks while working out or other daily routines), they are NOT leakproof period underwear. They could be used as a light liner, but will leak quickly if used for much more than this. If you want solid period underwear, check out Thinx, underwear specifically made to hold up to periods.