A back extension designed for runners want to extend the back of their running bra. Lengthens the back by one size. Compatible with STANDARD RUNNING BRA and LARGE-SIZE RUNNING BRA. 2 layers of fasteners. 3 adjustments.
The back extension exists in 2 heights: 38mm: compatible with the STANDARD RUNNING BRA: all A cups, B cups except 100B, 85C, 90C et 85D. 57mm: compatible with the STANDARD RUNNING BRA: sizes 100B, 95C, 100C, 90D, 95D, 100D and all E cups, and the LARGE-SIZE RUNNING BRA in all sizes.