Shop Nathan Sports for hydration gear & apparel that is perfect for trail running, hiking, working out, cycling and more.
Nathan is the trusted leader in running hydration, offering vests, bottles, flasks, waist packs, and handhelds built to keep runners performing at their best. Designed with superior form, fit, and function, our gear ensures you stay hydrated and comfortable on every run.
Nathan’s SHOP ALL collection brings together our best Hydration, Storage, and Safety gear—engineered for intuitive fit, comfort, and performance. Explore the full lineup of run-ready vests, handhelds, waist packs, lights, and essentials built for training, racing, hiking, and everyday miles.
Stay safe and visible with Nathan’s collection of reflective running gear, safety lights, and visibility accessories. Designed for comfort and performance, these essentials help you run confidently day or night.
Shop BPA-free hydration bottles, bladders, and flasks from Nathan Sports — featuring odor-free materials, insulated designs, and easy-sip spouts for runners and outdoor athletes.
Nathan Sports Ditch the pins—this lightweight race belt holds your bib and gels with ease for quick access.
JSTOR Daily: Functional dissimilarity, not phylogenetic relatedness, determines interspecific interactions among plants in the Tibetan alpine meadows
Functional dissimilarity, not phylogenetic relatedness, determines interspecific interactions among plants in the Tibetan alpine meadows
Dung beetles play a pivotal role in sustaining ecosystem processes through nutrient recycling, soil aeration, and plant growth enhancement. Their diverse ecology encompasses a wide range of functional ...
The modern technical definition of a functional is a function from a vector space into the scalar field. For example, finding the length of a vector is a (non-linear) functional, or taking a vector and returning the 3rd coordinate (relative to some basis) is a (linear) functional. But in a classical sense, functional is an antiquated term for a function that takes a function as input. For ...