The specs on that one are 65% 1B, Freestyle, I-Lace island with SFS all around. I highly recommend this base and between that and a complete SFS piece the weight and comfort are extremely close. There is no heat, nothing like skin, total breathibility. Just make sure there is no I-Lace anywhere near an edge. As with any thicker base getting it to be perfectly molded to your head and avoiding ripples after 2 days of wear is tough [EDIT - IF you have a heavy Base near the edge - this is NOT THE CASE if you have I-Lace as an island with SFS or French all around the Perimeter]. No need to worry if you are a comb down wearear. I show 100% hairline although the front can be messy at times.