Marmot Training

Frequently Asked Questions

• What distinguishes Marmot’s AirExchange and Crossover training lines from other performance apparel?

  Marmot’s training lines prioritize high-output breathability and sun protection with fabrics like Pertex Quantum 20D and DriClime mesh plus UPF50 sun ratings, while leaning heavily on recycled materials and bluesign®-approved textiles. Features such as Angel-Wing Movement cuts, zonal softshell reinforcements, and PFC-free EVODry/BWP finishes balance durability, mobility, and lower environmental impact.
• How does the AirExchange UPF50 Hoody compare to the Crossover SS for hot-weather running?

  The AirExchange UPF50 Hoody gives added sun coverage and a lightweight hood for extended exposure, while retaining high breathability and packability; it’s ideal when you want protection without much extra heat. The Crossover SS is a pared-down short-sleeve option with an athletic fit designed for max airflow and freedom of movement during fast efforts.
• What materials and technologies are responsible for breathability and moisture management in Marmot training pieces?

  Breathability comes from open-weave DriClime mesh and lightweight face fabrics like 20D Pertex Quantum or recycled nylon blends, while Polartec Alpha® provides breathable insulation for mixed-intensity use. Marmot combines these with hydrophobic, fluorocarbon-free finishes and bluesign®-approved materials to move moisture efficiently without traditional DWR/PFAS chemistry.
• Which Marmot training pieces work best across variable temperatures and activities like trail running, hiking, and paddling?

  Lightweight AirExchange shirts and the Crossover SS excel in 15–30°C conditions for aerobic efforts thanks to high ventilation and UPF protection; packable options like the Isotherm Hoody add breathable warmth for transitions or shoulder-season alpine outings. For multi-hour activities that alternate between exertion and rest, choose Polartec Alpha® insulated or hydrophobic layer options that shed light precipitation while remaining highly breathable.
• What fit and sizing should I expect from Marmot’s training shirts and hoodies, and how should I size for layering or mobility?

  Marmot’s training tops typically use a regular-to-athletic cut with Angel-Wing Movement for unrestricted shoulder mobility; expect standard sizing and a trim, performance-oriented silhouette. If you plan to wear them over a base layer or prefer extra room for layering, consider sizing up one size; consult the specific product’s sizing chart for chest and length measurements before choosing.