Winter protection, summer chamois.
Assos omits the chamois on these LL.habuTights_s7 Bib Tights for men so that you can opt to layer them over your favorite summer shorts and, by extension, your preferred chamois. Normally, we'd suggest using chamois-free winter tights for cold-weather cross training, but given Assos' penchant for designing cycling-specific tights, Nordic skiing or running in the LL.habuTights would be an awkward affair, at best.
The LL.milleTights feature what Assos describes in typical, medial-case style as comfortFit. Near as we can tell, comfortFit means a slightly more forgiving cut, especially through the bibs and rear yoke, which makes for a much quicker application that you don't necessarily need to be 100% awake for. While this may seem like a minor luxury, it certainly appeals to us on frigid winter mornings when we're already fumbling at the coffee pot and the floor pump and one more impediment may spell a preemptive end to the ride.
Of course, this is still Assos, so comfortFit doesn't mean club fit. The attention to detail that made Assos' name is evident in details like the articulation down the back of the leg, which strategically tapers and combines panels of material for a fit through the back of the knee that's every bit as bunch-free as the LL.bonkaTights. Even the reflective strips on the back of the legs are only attached at the ends, as sewing the lengthwise sides to the tights would compromise the stretch and fit of the fabric.
The materials themselves are both of the RX genus, which hits the usual cold-weather benefits of a brushed inner face for insulation and rapid moisture transfer. The leading panels are RX Heavy, an all-new material that doubles up on thermal protection with two layers at the knee, thigh, and hip, and doubles down on moisture control with Assos' water-resistant treatment. The back of the legs are made from the lighter, more breathable RX Light in order to regulate the microclimate's temperature while evacuating sweat and water vapor to ensure that a single hard interval won't condemn you to a clammy chill for the rest of the ride.