My most favorited Sport base ever is just perfect ! It's a 2 ply lofty construction, 100% superfine non superwash merino. I almost looks handspun ! I think it's a marvelous base for sweater and colorwork, it will also do marvel for shawls and accessories.

2 ply plumpy Sport weight 
100% extra fine non superwash merino
Recommended needle size 4 to 5,5mm

100gr 325m / 355 yards

Super soft and bouncy non superwash merino 
Hand wash in cold water and dry flat.