The Warm Up long sleeve bl***s technical function with a pared‑back aesthetic, reflecting the ongoing Descente Allterrain x JJJJound collaboration. Cut from soft, stretch fabric with a water‑repellent finish, it’s designed for comfort across both casual and active settings. Laser‑cut ventilation at the back enhances breathability, while the minimalist silhouette underscores the partnership’s focus on refined everyday performance. 100% Polyester Water-Repellent Laser-Cut Back Ventilation Seam-Sealed Stitching Embroidered JJJJound & Allterrain Branding Style Code: DU5FLTJ6MU-BW14