Salewa Alptrek 38+5L Women - Catinaccio and Latemar, Sorapis and Marmarole or the Sella Group... The Dolomites are the most colorful and complex mountain range for hiking and trekking in Europe. The Alptrek 38 was developed for long distances: a comfortable trekking backpack made of light, very abrasion-resistant nylon with a fully adjustable carrying system and a capacity of 38 liters.