Not so back to basics. Welcome to our reimagined eco-luxe take on the classic crew. Second skin softness, for life durability, our super-nature TreeSilk ™M fabric featuring regenerative beech tree fiber provides a "stretch to fit" feature to perfectly conform to your form. Elongating & slimming, bicep hugging sleeves to confidently feel like you just hit the gym. Gents, caution for rampant girlfriend thievery.