Assos Mille GT Half Shorts S11

The Assos Mille GT Half Shorts S11 exist for specific circumstances: indoor training sessions, early-morning coffee rides, and days hot enough that bib straps become an unnecessary complication. They're not trying to replace the Mille GT Bib Shorts — they're the answer for the rides when you want the same insert performance and fit quality without the shoulder straps. The S11 generation refines the formula with a new QUARTZ body textile, a more breathable insert, an extended leg length, and a lower overall weight than the previous generation.

The QUARTZ textile is a lightweight warp-knit fabric built with permanent odorControl and 80% pre-consumer recycled polyamide. The true-black color holds its depth under stretch — it won't turn translucent during a ride — and the construction prioritizes breathability and quick-drying performance (rated 5/5 by Assos) to match the warm-weather conditions these shorts are built for. A front panel of Sens AIR adds targeted support and ventilation across the lower stomach, eliminating pressure in aggressive riding positions where a solid panel would restrict movement. The waist system combines hipClick construction — elastic and mesh layers with a high, unrestrictive rise — with a zeroPressure waistband that holds securely without pinching. At the leg openings, PILtec Plug-In provides grip through a microdot silicone treatment embedded in an ultrabreathable textile band, invisible from the outside but effective in both wet and dry conditions.

The GT S11 insert runs 12mm deep and brings Assos's full endurance padding stack to the half shorts format. Mono12 compressive foam provides a thermoformed base that reduces ridges and friction across long efforts. The 3D Waffle layer — a patented three-layer perforated foam — manages heat and moisture while cutting unnecessary weight. goldenGate 2.0 sits at the center as a free-floating construction that moves with your body through the pedal stroke rather than resisting it; updated cut-outs on the wings further reduce friction where it matters most.

Specs at a Glance

• Body Textile: QUARTZ — lightweight warp knit | permanent odorControl | 80% recycled polyamide
• Front Panel: Sens AIR — breathable, supportive panel across lower stomach
• Insert: GT S11 | 12mm | Mono12 + 3D Waffle + goldenGate 2.0
• Waist: hipClick + zeroPressure Waist
• Leg Grip: PILtec Plug-In | microdot silicone | wet and dry
• Fit: regularFit
• Temperature: >69.8°F / 21°C
• Breathability: 4/5 | Quick-Drying: 5/5 | Ride Intensity: 3/5
• Color: blackSeries
• Sizes: XS–3XL

Design Benefits

1. QUARTZ Textile with Sens AIR
   QUARTZ is Assos's latest body fabric for the GT lineup — lighter and more durable than what it replaces, with a true-black color that doesn't bleed under stretch. The 80% recycled polyamide content addresses sustainability without compromising the performance properties Assos demands. The Sens AIR front panel adds a second layer of intent: ventilation where the shorts are in closest contact with your core, and enough support to keep the waist system stable without added bulk.
2. GT S11 Insert
   The same insert technology that goes into the full Mille GT Bib Shorts S11. At 12mm, it's an endurance-depth pad designed for multi-hour sessions, not just short efforts — which is exactly what indoor training and long warm-weather rides demand. The goldenGate 2.0 free-floating construction is the detail that separates this insert from cheaper alternatives: it moves independently rather than dragging against your skin, which compounds into real comfort over time in the saddle.