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Description
Go the (Virtual) Distance
The Assos Men's MILLE GT Indoor Bib Short S11 adapts their proven endurance bib short platform for indoor training with an ultralight, ultrabreathable, fast-drying construction.
The GT Bib Shorts are rider favorites for a reason. They're comfortable, they're breathable, and they last for several seasons of long-distance abuse. There is one calendar season where they don't excel, though: Winter. So Assos adapted everything that you love about them for indoor training, giving you the ultimate endurance bib shorts to see you through the cold months while spinning in-place on a training app.
Don't let the "Indoor," nomenclature fool you though, these bibs also thrive in the hottest summer conditions – Assos even recommend sunscreen under the ultralight leg panels. The construction combines the same textile on the standard GT S11, QUARTZ, with targeted panels of the open-structure POLSTAR, used on TACTICA liner shorts.
The pair of textiles balance years-long reliability and durability in high contact areas with impossibly lightweight breathability and cooling on the leg panels. The bib straps are also lighter, using a perforated mesh to maximize cooling airflow, and the GT S11 insert situates a breathable, cooling Sundeck section up front, where shock-absorbing support isn't needed but added airflow is more than welcome.
Features:
- Featured Fabrics: The QUARTZ textile is a lightweight, breathable warp knit with permanent odorControl — the same used on the standard GT Bib Shorts S11. The true-black color doesn't turn white or become transparent while stretching, and 80% of its content is from pre-consumer recycled polyamide. The legs are wrapped in POLSTAR, a bi-stretch, ultrabreathable cooling mesh with a hydrophobic treatment that pushes moisture to the surface and speeds evaporation.
- Construction/Fit: Streamlined regularFit and body-contoured shaping reduce seams, eliminating friction for total comfort and easy layering.
- X-Frame: A suspension design originally engineered for the Racing Series. Limits sag on the lower back, stabilizing the insert and main body panels.
- PILtec Plug-In: A lightweight, ultrabreathable textile band across the leg opening. The microdot silicone treatment is invisible from the outside but stabilizes fit and maintains grip in wet or dry conditions.
- zeroPressure Waist: A soft, highly elastic waist construction that improves comfort and hold at the waist without any pressure or pinching.
- MILLE GT S11 — Shock-Absorb Damping Mono 12: Compressive foam layers in a 12mm endurance platform. Thermoformed shaping reduces ridges and irritation.
- MILLE GT S11 — 3D Waffle: A patented, three-layer, perforated foam that increases breathability and eliminates excess weight.
- MILLE GT S11 — goldenGate 2.0: A free-floating construction that moves with your body rather than against it. New cut-outs on the wings reduce friction throughout the pedal stroke.
- Composition: Front/back/crotch insert: 84% polyamide, 16% elastane; Legs: 77% polyamide, 23% elastane; Padding insert: 85% polyester, 15% 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 - X-Small | Mfg PartNum: 11.10.330.18.XS |
Black Series - Small | Mfg PartNum: 11.10.330.18.S |
Black Series - Medium | Mfg PartNum: 11.10.330.18.M |
Black Series - Large | Mfg PartNum: 11.10.330.18.L |
Black Series - X-Large | Mfg PartNum: 11.10.330.18.XL |
Black Series - 2X-Large | Mfg PartNum: 11.10.330.18.2XL |
Black Series - 3X-Large | Mfg PartNum: 11.10.330.18.3XL |



















