Atlas Helium Trail Snowshoe Kit 23in Size. The new Helium-Trail snowshoe boasts a flexible composite frame coupled with tempered steel traction rails that create a rugged yet lightweight package. And 19 degree heel lifts ensure comfortable travel even on the steepest of slopes. Specifications for Atlas Helium Trail Snowshoe Kit: Manufacturer: Atlas Size: 23 in Gender: Unisex Color: Black Package Contents: Atlas Helium Trail Snowshoe Kit Atlas U220100201230: Helium Trail Snowshoe Kit 23in Size