From Sew Dynamic Fabrics:
Description: A medium (bottom) weight athletic knit ideal for activewear or swimwear.
Bottles Recycled: 18 bottles per yard
Content: 88% Repreve® polyester / 12% Elastane
Approximate Weight (may vary): 260 GSM (about 7.67 oz/yd² or 9.17 oz per yard )
Stretch Direction: 4-way
Stretch percentages: ~50% (horizontal and vertical)