this thing is a masterpiece of minimalist design. i just posted a fit with it in waywt, but thought i'd add a few more details here for those interested (though the pics were taken in low light, unfortunately). the exterior is a cotton moleskin that is soft, but thick and structured, while the interior is fully lined in silky cupro. it feels like wearing a coat of armor that swaddles you at the same time. the cut is incredible-- slim, articulated sleeves and a loose, flowy torso.
the coat features a hidden placket with both zipper and buttons running all way up to the funnel neck, which has a double-wrap velcro fastening. the high collar curves perfectly to surround the wearer's head while not getting in the way. the collar features an internal wire that allows the wearer to shape it, but unlike several other jackets i've had with this feature, the thickness of the material and the tightness of the seaming holding it in place prevents it from getting kinked and wavy. finally, the sleeves have tonal zippers at the cuffs and helmut's signature biker stitching at the elbows.
hmmm, have you tried many pieces? in my experience, most of the helmut stuff fits more or less tts (it varies just a bit by season). some stuff even fits slim. i'm a 50 and could size up to a 52 in several things if i ever found them. so it might be worth trying again. you can also search through some of the women's pieces, since they definitely fit smaller frames and are often quite unisex in design.