Optimistic Runners Ruffle Longsleeve-Black

【Product Description】 

The Ruffle Longsleeve by Berlin-based Optimistic Runners is made from a textured stretch fabric with a horizontal striped surface. Designed in a slightly cropped, relaxed fit with integrated thumbholes and a reflective O.R logo at the chest.

Crafted from a premium blend of polyester, nylon, and elastane, this top balances tactile warmth, breathable stretch, and urban running style. The slightly cropped, relaxed silhouette moves with you effortlessly, while integrated thumbholes keep your hands warm when the temperature drops. Designed to take you smoothly from early morning miles to post-run coffee in the city.

【Fit Guide & Sizing Recommendation】

Relaxed, slightly cropped fit.

• Model Fit Reference: John is wearing size Medium; Matilde is wearing size Extra Small.
• Sizing Note: Due to the specific technical properties of the textured fabric, this style runs slightly smaller. We recommend selecting one size up from your standard European size.
• Measurement Guide (cm, ±1.5cm tolerance):
  A — Half chest circumference: Measure straight across between armpits.
  B — Length: Measure from the highest point to the bottom hem.

【Key Details】

• Signature Optimistic Runners textured horizontal striped fabric for elevated tactile style and 4-way stretch
• Slightly cropped length paired with a relaxed, fluid silhouette
• Integrated thumbholes at cuffs to keep sleeves secure and hands warm
• High-visibility reflective O.R logo on the chest

【Fabric & Care Instructions】

• 78% Polyester, 13% Nylon, 9% Elastane
• Machine wash cold (30°C max). Wash inside out in a laundry bag. Do not iron, do not bleach, do not dry clean, do not tumble dry.