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Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.
The core of our tent guylines is made of Dyneema, a high-tech fiber with perfect properties for guylines. Based on its mass, Dyneema's tensile strength of 200 kg/ 440 lbs is 15 x greater than steel, 5 x stronger than Nylon and 40% stronger than Kevlar. Dyneema is so light that it floats and has a high resistance to abrasion, humidity, UV radiation and chemicals.
Dyneema is static and will not stretch as wind force increases. This reduces vibration of the tent, pegs from being pulled free and damage to tent poles. It is supple enough to allow knots to be tied. Reflective thread has been woven into the the mantle to increase visibility at night.
We are a Seattle, WA based outdoor gear store with a mission to make climbing, backpacking, skiing & mountaineering accessible and enjoyable for everyone.
© 2026, Master Store
