Best For: Training
The TrailTrainer Fleece Zip-T is the ultimate mid-layer for field training—warmth without the bulk. Built with the same advanced fabric as the KUIU Vital S3 and purpose-tuned for high-output training, it delivers comfort that moves with you on runs, hikes, and rucks.
Wear it alone in cool conditions or layer it under your favorite shell. The 127 g/m² fabric combines moisture-wicking, quick-drying performance with XLANCE® stretch technology: a stretch yarn that resists sweat, chemicals, heat, ozone, and UV while staying incredibly light. Unlike traditional elastane, XLANCE offers gentle, low-force stretch that feels fatigue-free during dynamic movement yet recovers season after season. Toray Makspec® antimicrobial treatment keeps odor at bay.
Half-zip ventilation, raglan sleeves, underarm panels, and a drop-back hem complete a mid-layer that stays dry and ready for whatever the day demands.
- Half-zip design for ventilation and easy on-and-off
- Embroidered logos: left chest and centered on back collar
- Raglan sleeve for enhanced no-lift articulation
- Flat seams for non-chafing comfort
- Underarm side panels
- Soft-brushed fleece interior
- Drop-back hem
- Moisture wicking
- Quick drying
- 4-way stretch
- Odor resistant
- 90% Polyester / 10% XLANCE® – 127 g/m²
- XLANCE – UV- and sweat-resistant stretch fiber for superior durability and shape retention
- Toray Makspec® – Antimicrobial odor resistance
Fit
Athletic, adult sizes





