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Description
Transform Your Favorite Shorts Into Winter Riding Mode
Assos Thermobooster Bib Tights S11 are winter tights engineered for layering over summer-weight bib shorts or adding insulation in the most extreme conditions. The construction is similar to the GT HASHOOGI tights, but the insert is omitted for additional versatility.
The ThermoBooster S11 pushes versatility to the extreme, allowing a number of use cases to adapt throughout winter. For cycling, it layers over your preferred summer shorts without adding the bulk of a second insert. In the most extreme conditions, it can be worn over another pair of tights for an additional thermoregulating layer. For cross-training, the ThermoBooster adapts to skiing and running, adding an additional element of reflectivity to your workout.
However you employ it, the raw-cut finishing and low-volume insulation reduces bulk for layering, unlocking an entire system of winter layering for any outdoor training.
Features:
- RX EVO Plus is the most thermally insulating of the RX EVO family. It resists odor, wraps the large muscle groups in asymmetrical stretch, and traps body warmth with low-volume thermoregulation. The warp knit resists abrasion, and it stays black rather than showing white elastic while stretching.
- Streamlined, unisex regularFit and body-contoured shaping reduce seams, eliminating friction for total comfort and easy layering. Raw cut waist and ankles finish with a gently compressive, bulk-reducing hold.
- zeroPressure waist: A waist construction developed with a soft, highly elastic material to improve the comfort and hold at the waist, minus any pressure or pinching.
- X-Frame: A suspension design originally engineered for the Racing Series. Limits sag on the lower back, stabilizing the insert and main body panels.
- Reflective: Large stripes on the lower legs increase visibility in low-light, overcast conditions, flashing light throughout the pedal stroke.
- Main Fabric 76%Polyamide 24%Elastane
Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We'll cover the shipping both ways for continental US customers (not applicable for AK, HI, APO, FPO) if you need a different size and/or color of this product. Returned product must be in new condition with all labels and packaging. Free exchanges apply only for product in stock or available for backorder.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Size Chart
XS | S | M | L | XL | XLG | |
Height | 5'3"-5'7" | 5'7"-5'9" | 5'8"-5'11" | 5'11"-6'2" | 6'1"-6'2" | 6'2½"-0" |
Waist | 27½"-29.1" | 29.2"-31½" | 31.6"-33.8" | 33.8"-36.2" | 36.3"-38.9" | 39"-41.7" |
Specifications
Black Series - Small | Mfg PartNum: 11.14.303.18.S |
Black Series - Medium | Mfg PartNum: 11.14.303.18.M |
Black Series - Large | Mfg PartNum: 11.14.303.18.L |
Black Series - X-Large | Mfg PartNum: 11.14.303.18.XL |

